Advertisements
Online Mock Tests
Chapters
![NCERT solutions for Mathematics [English] Class 7 chapter 9 - Perimeter and Area - Shaalaa.com](/images/mathematics-english-class-7_6:c3cebe068a194d94b26c11e5078e5928.jpg "NCERT solutions for Mathematics [English] Class 7 chapter 9 - Perimeter and Area")
Advertisements
Solutions for Chapter 9: Perimeter and Area
Below listed, you can find solutions for Chapter 9 of CBSE NCERT for Mathematics [English] Class 7.
NCERT solutions for Mathematics [English] Class 7 9 Perimeter and Area EXERCISE 9.1 [Pages 151 - 152]
Find the area of the following parallelogram:
Find the area of the following parallelogram:
Find the area of the following parallelogram:
Find the area of the following parallelogram:
Find the area of the following parallelogram:
Find the area of the following triangle:
Find the area of the following triangle:
Find the area of the following triangle:
Find the area of the following triangle:
Find the missing value:
| Base | Height | Area of parallelogram |
| 20 cm | ______ | 246 cm2 |
Find the missing value:
| Base | Height | Area of parallelogram |
| ______ | 15 cm | 154.5 cm2 |
Find the missing value:
| Base | Height | Area of parallelogram |
| ______ | 8.4 cm | 48.72 cm2 |
Find the missing value:
| Base | Height | Area of parallelogram |
| 15.6 cm | ______ | 16.38 cm2 |
Find the missing value:
| Base | Height | Area of triangle |
| 15 cm | ______ | 87 cm2 |
Find the missing value:
| Base | Height | Area of Triangle |
| ______ | 31.4 mm | 1256 mm2 |
Find the missing value:
| Base | Height | Area of Triangle |
| 22 cm | ______ | 170.5 cm2 |
PQRS is a parallelogram (see the given figure). QM is the height from Q to SR and QN is the height from Q to PS. If SR = 12 cm and QM = 7.6 cm. Find:
- the area of the parallelogram PQRS
- QN, if PS = 8 cm
DL and BM are the heights on sides AB and AD respectively of parallelogram ABCD (see the given figure). If the area of the parallelogram is 1470 cm2, AB = 35 cm and AD = 49 cm, find the length of BM and DL.
ΔABC is right angled at A (see the given figure). AD is perpendicular to BC. If AB = 5 cm, BC = 13 cm and AC = 12 cm, Find the area of ΔABC. Also find the length of AD.
ΔABC is isosceles with AB = AC = 7.5 cm and BC = 9 cm (see the given figure). The height AD from A to BC, is 6 cm. Find the area of ΔABC. What will be the height from C to AB i.e., CE?
NCERT solutions for Mathematics [English] Class 7 9 Perimeter and Area EXERCISE 9.2 [Pages 158 - 159]
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
14 cm
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
28 mm
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
21 cm
Find the area of the following circle, given that radius = 14 mm (take `pi = 22/7`).
Find the area of the following circle, given that diameter = 49 m.
Find the area of the following circles, given that radius = 5 cm.
If the circumference of a circular sheet is 154 m, find its radius. Also find the area of
the sheet. (Take `pi = 22/7`)
A gardener wants to fence a circular garden of diameter 21 m. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence. Also find the costs of the rope, if it cost ₹ 4 per meter. (Take `pi = 22/7`)
From a circular sheet of radius 4 cm, a circle of radius 3 cm is removed. Find the area of the remaining sheet. (Take π = 3.14)
Saima wants to put a lace on the edge of a circular table cover of diameter 1.5 m. Find the length of the lace required and also find its cost if one meter of the lace costs ₹ 15. (Take π = 3.14)
Find the perimeter of the adjoining figure, which is a semicircle including its diameter.
Find the cost of polishing a circular table-top of diameter 1.6 m, if the rate of polishing is ₹ 15/m2. (Take π = 3.14)
Shazli took a wire of length 44 cm and bent it into the shape of a circle. Find the radius of that circle. Also find its area. If the same wire is bent into the shape of a square, what will be the length of each of its sides? Which figure encloses more area, the circle or the square? (Take `pi = 22/7`)
From a circular card sheet of radius 14 cm, two circles of radius 3.5 cm and a rectangle of length 3 cm and breadth 1 cm are removed. (as shown in the following figure). Find the area of the remaining sheet. (Take `pi = 22/7`)
A circle of radius 2 cm is cut out from a square piece of an aluminium sheet of side 6 cm. What is the area of the left over aluminium sheet? (Take π = 3.14)
The circumference of a circle is 31.4 cm. Find the radius and the area of the circle? (Take π = 3.14)
A circular flower bed is surrounded by a path 4 m wide. The diameter of the flower bed is 66 m. What is the area of this path? (π = 3.14)
A circular flower garden has an area of 314 m2. A sprinkler at the centre of the garden can cover an area that has a radius of 12 m. Will the sprinkler water the entire garden? (Take π = 3.14)
Find the circumference of the inner and the outer circles, shown in the adjoining figure? (Take π = 3.14)
How many times a wheel of radius 28 cm must rotate to go 352 m? (Take `pi = 22/7`)
The minute hand of a circular clock is 15 cm long. How far does the tip of the minute hand move in 1 hour. (Take π = 3.14)
Solutions for 9: Perimeter and Area
NCERT solutions for Mathematics [English] Class 7 chapter 9 - Perimeter and Area
Shaalaa.com has the CBSE Mathematics Mathematics [English] Class 7 CBSE 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. NCERT solutions for Mathematics Mathematics [English] Class 7 CBSE 9 (Perimeter and Area) 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. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Mathematics [English] Class 7 chapter 9 Perimeter and Area are Area of Square, Triangles as Parts of Rectangles and Square, Generalising for Other Congruent Parts of Rectangles, Mensuration, Concept of Perimeter, Area of Rectangle, Concept of Area, Circumference of a Circle, Area of Circle, Problems based on Perimeter and Area, Perimeter of a Rectangle, Perimeter of Squares, Perimeter of Triangles, Perimeter of Polygon, Area of a Parallelogram, Area of a Triangle, Conversion of Units, Area of Square, Triangles as Parts of Rectangles and Square, Generalising for Other Congruent Parts of Rectangles, Mensuration, Concept of Perimeter, Area of Rectangle, Concept of Area, Circumference of a Circle, Area of Circle, Problems based on Perimeter and Area, Perimeter of a Rectangle, Perimeter of Squares, Perimeter of Triangles, Perimeter of Polygon, Area of a Parallelogram, Area of a Triangle, Conversion of Units.
Using NCERT Mathematics [English] Class 7 solutions Perimeter and Area 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 NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE Mathematics [English] Class 7 students prefer NCERT Textbook Solutions to score more in exams.
Get the free view of Chapter 9, Perimeter and Area Mathematics [English] Class 7 additional questions for Mathematics Mathematics [English] Class 7 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.
