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Selina solutions for Mathematics [English] Class 6 chapter 24 - Angles (With their Types) [Latest edition]

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Selina solutions for Mathematics [English] Class 6 chapter 24 - Angles (With their Types) - Shaalaa.com
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Solutions for Chapter 24: Angles (With their Types)

Below listed, you can find solutions for Chapter 24 of CISCE Selina for Mathematics [English] Class 6.


Exercise 24 (A)Exercise 24 (B)Revision Exercise
Exercise 24 (A)

Selina solutions for Mathematics [English] Class 6 24 Angles (With their Types) Exercise 24 (A)

Exercise 24 (A) | Q 1.1

State if the angle given below, write the name of the vertex, the name of the arm and the name of the angle.

Exercise 24 (A) | Q 1.2

State if the angle given below, write the name of the vertex, the name of the arm and the name of the angle.

Exercise 24 (A) | Q 1.3

State if the angle given below, write the name of the vertex, the name of the arm and the name of the angle.

Exercise 24 (A) | Q 1.4

Name the angles marked by letters a, b, c, x and y.

Exercise 24 (A) | Q 2.1

Name the points in the interior of the angle PQR.

Exercise 24 (A) | Q 2.2

Name the points in the exterior of the angle PQR.

Exercise 24 (A) | Q 3

In the given figure, figure out the number of angles formed within the arms OA and OE.

Exercise 24 (A) | Q 4.1

Add: 29° 16′ 23″ and 8° 27′ 12″

Exercise 24 (A) | Q 4.2

Add: 9° 45’56” and 73° 8′ 15″

Exercise 24 (A) | Q 4.3

Add: 56° 38′ and 27° 42’30”

Exercise 24 (A) | Q 4.4

Add: 47° and 61° 17’4″

Exercise 24 (A) | Q 5.1

In the figure, given below name the three pairs of adjacent angles.

Exercise 24 (A) | Q 5.2

In the figure, given below name the two acute angles.

Exercise 24 (A) | Q 5.3

In the figure, given below name the two obtuse angles

Exercise 24 (A) | Q 5.4

In the figure, given below name the two reflex angles.

Exercise 24 (A) | Q 6.1

In the given figure; PQR is a straight line. If: ∠SQR = 75°; find ∠PQS.

Exercise 24 (A) | Q 6.2

In the given figure; PQR is a straight line. If: ∠PQS = 110°; find ∠RQS.

Exercise 24 (A) | Q 7

In the given figure ; AOC-is a straight line. If angle AOB = 50°, angle AOE = 90° and angle COD = 25° ; find the measure of:

(i) angle BOC
(ii) angle EOD
(iii) obtuse angle BOD
(iv) reflex angle BOD
(v) reflex angle COE.

Exercise 24 (A) | Q 8.1

In the given figure if: a = 130° ; find b.

Exercise 24 (A) | Q 8.2

In the given figure if: b = 200 ; find a.

Exercise 24 (A) | Q 8.3

In the given figure if: a = 5/3 right angle, find b

Exercise 24 (A) | Q 9.1

In the given diagram, ABC is a straight line. If x = 53°, find y.

Exercise 24 (A) | Q 9.2

In the given diagram, ABC is a straight line. If y =`1 1/2` right angles; find x.

Exercise 24 (A) | Q 10

In the given figure, AOB is a straight line. Find the value of x and also answer each of the following:

(i) ∠AOP = ……..
(ii) ∠BOP = ……..
(iii) which angle is obtuse?
(iv) which angle is acute?

Exercise 24 (A) | Q 11

In the given figure, PQR is a straight line. Find x. Then complete the following:

(i) ∠AQB = _______
(ii) ∠BQP = _______
(iii) ∠AQR = _______

Exercise 24 (A) | Q 12

In the given figure, lines AB and CD intersect at point O.
(i) Find the value of ∠a.
(ii) Name all the pairs of vertically opposite angles.
(iii) Name all the pairs of adjacent angles.
(iv) Name all the reflex angles formed and write the measure of each.

Exercise 24 (A) | Q 13

In the given figure:

(i) If ∠AOB = 45°, ∠BOC = 30° and ∠AOD= 110°; find : angles COD and BOD.
(ii) If ∠BOC = ∠DOC = 34° and ∠AOD = 120° ; find : angle AOB and angle AOC.
(iii) If ∠AOB = ∠BOC = ∠COD = 38° find : reflex angle AOC and reflex angle AOD.

Exercise 24 (B)

Selina solutions for Mathematics [English] Class 6 24 Angles (With their Types) Exercise 24 (B)

Exercise 24 (B) | Q 1.1

Write the complement angle of: 45°

Exercise 24 (B) | Q 1.2

Write the complement of an angle of measure x°.

Exercise 24 (B) | Q 1.3

Write the complement angle of: (x – 10)°

Exercise 24 (B) | Q 1.4

Write the complement angle of: 20° + y°

Exercise 24 (B) | Q 2.1

Write the supplement angle of: 49°

Exercise 24 (B) | Q 2.2

Write the supplement angle of: 111°

Exercise 24 (B) | Q 2.3

Write the supplement angle of: (x – 30)°

Exercise 24 (B) | Q 2.4

Write the supplement angle of: 20° + y°

Exercise 24 (B) | Q 3.1

Write the complement angle of: `1/2` of 60°

Exercise 24 (B) | Q 3.2

Write the complement angle of: `1/5` of 160°

Exercise 24 (B) | Q 3.3

Write the complement angle of: `2/5` of 70°

Exercise 24 (B) | Q 3.4

Write the complement angle of: `1/6` of 90°

Exercise 24 (B) | Q 4.1

50% of 120°

Exercise 24 (B) | Q 4.2

`1/3` of 150°

Exercise 24 (B) | Q 4.3

60% of 100°

Exercise 24 (B) | Q 4.4

`3/4` of 160°

Exercise 24 (B) | Q 5.1

Find the angle that is equal to its complement?

Exercise 24 (B) | Q 5.2

Find the angle that is equal to its supplement?

Exercise 24 (B) | Q 6

Two complementary angles are in the ratio 7 : 8. Find the angles.

Exercise 24 (B) | Q 7

Two supplementary angles are in the ratio 7 : 11. Find the angles.

Exercise 24 (B) | Q 8

The measures of two complementary angles are (2x – 7)° and (x + 4)°. Find x.

Exercise 24 (B) | Q 9

The measures of two supplementary angles are (3x + 15)° and (2x + 5)°. Find x.

Exercise 24 (B) | Q 10

For an angle x°, find:
(i) the complementary angle
(ii) the supplementary angle
(iii) the value of x° if its supplementary angle is three times its complementary angle.

Revision Exercise

Selina solutions for Mathematics [English] Class 6 24 Angles (With their Types) Revision Exercise

Revision Exercise | Q 1.1

Explain what do you understand by Adjacent angles?

Revision Exercise | Q 1.2

Explain what do you understand by complementary angles?

Revision Exercise | Q 1.3

Explain what do you understand by supplementary angles?

Revision Exercise | Q 2.1

Find the value of ‘x’ for the following figure:

Revision Exercise | Q 2.2

Find the value of ‘x’ for the following figure:

Revision Exercise | Q 2.3

Find the value of ‘x’ for the following figure:

Revision Exercise | Q 3.1

Find the number of degrees in an angle that is `3/5` of a right angle.

Revision Exercise | Q 3.2

Find the number of degrees in an angle that is 0.2 times of a straight line angle.

Revision Exercise | Q 4.1

In the given figure; AB, CD and EF are straight lines. Name the pair of angles forming the straight line angles.

Revision Exercise | Q 4.2

In the given figure; AB, CD and EF are straight lines. Name the pair of angles forming the vertically opposite angles.

Revision Exercise | Q 5.1

Find the complement of: `2/5  "of" 210^circ`

Revision Exercise | Q 5.2

Find the complement of 0.4 times of 130°.

Revision Exercise | Q 6.1

Find the supplement of: `5/7` of 154°

Revision Exercise | Q 6.2

Find the supplement of 0.7 times of 150°

Revision Exercise | Q 7

Two complementary angles are in the ratio 7 : 8. Find the angles.

Revision Exercise | Q 8

Two supplementary angles are in the ratio 7 : 5. Find the angles.

Revision Exercise | Q 9

Two supplementary angles are (5x – 82°) and (4x + 73°). Find the value of x.

Revision Exercise | Q 10.1

Find the angle formed by the arms of a clock at 3 O’clock.

Revision Exercise | Q 10.2

Find the angle formed by the arms of a clock at 6 O’clock.

Revision Exercise | Q 10.3

Find the angle formed by the arms of a clock at 9 O’clock.

Revision Exercise | Q 10.4

Find the angle formed by the arms of a clock at 12 O’clock.

Revision Exercise | Q 11

For an angle y°, find:
(i) its supplementary angle.
(ii) its complementary angle.
(iii) the value of y° if its supplement is four times its complement.

Revision Exercise | Q 12

Use the adjoining figure to find: (i) ∠BOD (ii) ∠AOC

Revision Exercise | Q 13

Two adjacent angles forming a linear pair are in the ratio 7:5, find the angles.

Revision Exercise | Q 14

Find the angle that is three times its complementary angle.

Revision Exercise | Q 15

An angle is one-thirds of a straight line angle; find:

(i) the angle
(ii) the complement and the supplement of the angle obtained above.

Solutions for 24: Angles (With their Types)

Exercise 24 (A)Exercise 24 (B)Revision Exercise
Selina solutions for Mathematics [English] Class 6 chapter 24 - Angles (With their Types) - Shaalaa.com

Selina solutions for Mathematics [English] Class 6 chapter 24 - Angles (With their Types)

Shaalaa.com has the CISCE Mathematics Mathematics [English] Class 6 CISCE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Selina solutions for Mathematics Mathematics [English] Class 6 CISCE 24 (Angles (With their Types)) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Selina textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.

Concepts covered in Mathematics [English] Class 6 chapter 24 Angles (With their Types) are Measure of Angles, Types of Angles, Introduction to Lines and Angles.

Using Selina Mathematics [English] Class 6 solutions Angles (With their Types) exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Selina Solutions are essential questions that can be asked in the final exam. Maximum CISCE Mathematics [English] Class 6 students prefer Selina Textbook Solutions to score more in exams.

Get the free view of Chapter 24, Angles (With their Types) Mathematics [English] Class 6 additional questions for Mathematics Mathematics [English] Class 6 CISCE, and you can use Shaalaa.com to keep it handy for your exam preparation.

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