English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

Construct a triangle ABC with given conditions. AB = 7 cm, AC = 6.5 cm and ∠A = 120° - Mathematics

Advertisements
Advertisements

Question

Construct a triangle ABC with given conditions.

AB = 7 cm, AC = 6.5 cm and ∠A = 120°

Diagram

Solution



Construction:

Step 1: Drawn a line. Marked A and B on the line such that AB = 7 cm.

Step 2: At A, drawn a ray AX making an angle of 120° with AB.

Step 3: With A as centre, drawn an arc of radius 6.5 cm to cut the ray AX.

Marked the point of intersection as C.

Step 4: Joined BC.

ABC is the required triangle.

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Geometry - Exercise 4.2 [Page 85]

APPEARS IN

Samacheer Kalvi Mathematics - Term 2 [English] Class 7 TN Board
Chapter 4 Geometry
Exercise 4.2 | Q 7. II. (i) | Page 85

RELATED QUESTIONS

Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:


For the given pair of triangles state the criterion that can be used to determine the congruency?


Construct a triangle PQR with given conditions.

∠P = 60°, ∠R = 35° and PR = 7.8 cm


In the given figure, ΔPQR ≅ Δ ______.


In the given figure, which pairs of triangles are congruent by SAS congruence criterion (condition)? if congruent, write the congruence of the two triangles in symbolic form.


In the given figure, which pairs of triangles are congruent by SAS congruence criterion (condition)? if congruent, write the congruence of the two triangles in symbolic form.


In the given figure, which pairs of triangles are congruent by SAS congruence criterion (condition)? if congruent, write the congruence of the two triangles in symbolic form.


In the given figure, which pairs of triangles are congruent by SAS congruence criterion (condition)? if congruent, write the congruence of the two triangles in symbolic form.


State which of the following pairs of triangles are congruent. If yes, write them in symbolic form (you may draw a rough figure).

∆PQR: PQ = 3.5 cm, QR = 4.0 cm, ∠Q = 60°

∆STU: ST = 3.5 cm, TU = 4 cm, ∠T = 60°


State which of the following pairs of triangles are congruent. If yes, write them in symbolic form (you may draw a rough figure).

∆ABC: AB = 4.8 cm, ∠A = 90°, AC = 6.8 cm

∆XYZ: YZ = 6.8 cm, ∠X = 90°, ZX = 4.8 cm


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×