Advertisements
Advertisements
प्रश्न
A Rose garden is in the form of circle of radius 63 m. The gardener wants to fence it at the rate of ₹ 150 per metre. Find the cost of fencing?
Advertisements
उत्तर
Radius of the garden r = 63 m
Circumference of the garden = 2πr units
= `2 xx 22/7 xx 63 "m"`
= 2 × 22 × 9
= 396 m
Cost of fencing 1 meter = ₹ 150
Cost of fencing 396 meter = ₹ 150 × 396 = ₹ 59,400
∴ Cost of fencing the garden = ₹ 59,400
APPEARS IN
संबंधित प्रश्न
In the given figure, the side of square is 28 cm and radius of each circle is half of the length of the side of the square where O and O' are centres of the circles. Find the area of shaded region.
The area of circle, inscribed in equilateral triangle is 154 cms2. Find the perimeter of
triangle.
The area of a minor sector of a circle is 3.85 cm2 and the measure of its central angle is 36°. Find the radius of the circle.
If the perimeter of a square is equal to the circumference of a circle then the ratio of their areas is ______.
Find the curved surface area , the total surface area and the volume of a cone if its :
Height = 12 cm , radius = 5 cm
A lawn is in the shape of a semi-circle of diameter 42 m. The lawn is surrounded by a flower bed of width 7 m all around. Find the area of the flower bed in m2 .
A cylindrical bucket, whose base radius is 20 cm, is filled with water to a height of 25 cm. A heavy iron spherical ball of radius 10 cm is dropped to submerge completely in water in the bucket. Find the increase in the level of water.
Find the diameter of the sphere for the following :
Surface Area = `576pi`cm2
The radius of the wheel of a bus is 0.7 m. How many rotations will a wheel complete while traveling a distance of 22 km?
Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with ______.
