Advertisements
Advertisements
प्रश्न
Find the area of a circular pathway whose outer radius is 32 cm and inner radius is 18 cm.
Advertisements
उत्तर
Radius of the outer circle R = 32 cm
Radius of the inner circle r = 18 cm
Area of the circular pathway = π(R2 – r2) sq.units
= `22/7 (32^2 - 18^2) "cm"^2`
= `22/7 xx (32 + 18) xx (32 - 18) "cm"^2`
= `22/7 xx 50 xx 14 "cm"^2`
= 2,200 cm2
Area of the circular pathway = 2,200 cm2
APPEARS IN
संबंधित प्रश्न
There is a circular lawn of radius 28 m. A path of 7 m width is laid around the lawn. What will be the area of the path?
A circular carpet whose radius is 106 cm is laid on a circular hall of radius 120 cm. Find the area of the hall uncovered by the carpet
A school ground is in the shape of a circle with radius 103 m. Four tracks each of 3 m wide has to be constructed inside the ground for the purpose of track events. Find the cost of constructing the track at the rate of ₹ 50 per sq.m
A rectangular garden has dimensions 11 m × 8 m. A path of 2 m wide has to be constructed along its sides. Find the area of the path
The formula to find the area of the circular path is
The formula used to find the area of the rectangular path is
A path 2 m long and 1 m broad is constructed around a rectangular ground of dimensions 120 m and 90 m respectively. Find the area of the path
A circular path has to be constructed around a circular lawn. If the outer and inner circumferences of the path are 88 cm and 44 cm respectively, find the width and area of the path
A cow is tethered with a rope of length 35 m at the centre of the rectangular field of length 76 m and breadth 60 m. Find the area of the land that the cow cannot graze?
A goat is tethered with a rope of length 45 m at the centre of the circular grassland whose radius is 52 m. Find the area of the grassland that the goat cannot graze
