EASY
7th CBSE
IMPORTANT
Earn 100

A racetrack is in the form of a ring whose inner circumference is 528 m and the outer circumference is 616 m. Find the width of the track.

Important Questions on Mensuration

EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 10
The inner circumference of a circular track is 330 m. The track is 10.5 m wide everywhere. Calculate the cost of putting up a fence along the outer circle at the rate of Rs 20 per metre.
MEDIUM
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 11
One circle has radius of 98 cm and a second concentric circle has a radius of 1 m 26 cm. How much longer is the circumference of the second circle than that of the first?
MEDIUM
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 12
A piece of wire is bent in the shape of an equilateral triangle each of whose sides measures 8.8 cm. This wire is rebent to form a circular ring. What is the diameter of the ring?
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 13
A rhombus has the same perimeter as the circumference of a circle. If each side of the rhombus measures 33 cm, find the radius of the circle.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 14
A wire in the form of a rectangle 18.7 cm long and 14.3 cm wide is reshaped and bent into the form of a circle. Find the radius of the circle so formed.
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 15
A wire is looped in the form of a circle of radius 35 cm. If it is rebent in the form of a square, what will be the length of each side of the square?
MEDIUM
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 16
A well of diameter 140 cm has a stone parapet around it. If the length of the outer edge of the parapet is 616 cm, find the width of the parapet. [Take π=227]
EASY
7th CBSE
IMPORTANT
MATHEMATICS FOR CLASS 7>Chapter 20 - Mensuration>EXERCISE 20E>Q 17
Find the distance covered by the wheel of a bus in 2000 rotations if the diameter of the wheel is 98 cm.