Advertisements
Advertisements
प्रश्न
Area of a circle with diameter ‘m’ radius ‘n’ and circumference ‘p’ is ______.
पर्याय
2πn
πm2
πp2
πn2
Advertisements
उत्तर
Area of a circle with diameter ‘m’ radius ‘n’ and circumference ‘p’ is `bb(underline(πn^2))`.
Explanation:
Given, diameter = m, radius = n and circumference = p
∴ Area of circle = πr2 = πn2
APPEARS IN
संबंधित प्रश्न
A rectangular plot measure 125 m by 78 m. It has gravel path 3 m wide all around on the outside. Find the area of the path and the cost of gravelling it at` ₹ 75 per m^2`
The area of a parallelogram is `392m^2` . If its altitude is twice the corresponding base, determined the base and the altitude.
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.

What is the ratio of the areas of a circle and an equilateral triangle whose diameter and a side are respectively equal?
The radius of a wheel is 0.25 m. The number of revolutions it will make to travel a distance of 11 km will be
The ratio of the areas of a circle and an equilateral triangle whose diameter and a side are respectively equal, is
If the area of a sector of a circle bounded by an arc of length 5π cm is equal to 20π cm2, then the radius of the circle
If π is taken as `22/7` the distance (in metres) covered by a wheel of diameter 35 cm, in one revolution, is
The short and long hands of a clock are 4 cm and 6 cm long respectively. Find the sum of distances travelled by their tips in 2 days.
The areas of two concentric circles are 1386 cm2 and 962.5 cm2. The width of the ring is
