Advertisements
Advertisements
प्रश्न
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?
उत्तर
Length of the field l = 76 m
Breadth of the field b = 60 m
Area of the field A = l × b sq.units = 76 × 60 m2
Area of the field A = 4560 m2
Length of the rope = 35 m
Radius of the land that the cow can graze = 35 m
Area of the land that the cow can graze = circle of radius 35 m = πr2 sq.units
π × 35 × 35 m2 = `22/7 xx 35 xx 35 "m"^2`
= 3850 m2
Area of the land the cow cannot graze = Area of the field – Area that the cow can graze
= 4560 – 3860 m2
= 710 m2
Area of the land that the cow cannot graze = 710 m2
APPEARS IN
संबंधित प्रश्न
Find the area of a circular pathway whose outer radius is 32 cm and inner radius is 18 cm.
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 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
A canal of width 1 m is constructed all along inside the field which is 24 m long and 15 m wide. Find (i) the area of the canal (ii) the cost of constructing the canal at the rate of ₹ 12 per sq.m.
The formula to find the area of the circular path is
Four circles are drawn side by side in a line and enclosed by a rectangle as shown below. If the radius of each of the circles is 3 cm, then calculate:
(i) The area of the rectangle.
(ii) The area of each circle.
(iii) The shaded area inside the rectangle.
A circular path has to be constructed around a circular ground. If the areas of the outer and inner circles are 1386 m2 and 616 m2 respectively, find the width and area of the path
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
A strip of 4 cm wide is cut and removed from all the sides of the rectangular cardboard with dimensions 30 cm × 20 cm. Find the area of the removed portion and area of the remaining cardboard
