Advertisements
Advertisements
प्रश्न
The ratio of the area of a circle to the area of its semicircle is
पर्याय
2 : 1
1 : 2
4 : 1
1 : 4
Advertisements
उत्तर
The ratio of the area of a circle to the area of its semicircle is 2 : 1
APPEARS IN
संबंधित प्रश्न
The cost of painting the four walls of a room 12 m long at ₹ 30 per m2 is ₹ 7560 and the cost of covering the floor with mat at ₹ 25 per m2 is ₹ 2700. Find the dimensions of the room.
From a circular piece of cardboard of radius 3 cm two sectors of 900 have been cutoff . Find the perimeter of the remaining portion nearest hundredth centimeters ( `"Take" pi = 22/ 7`).
In the following figure a square OABC is inscribed in a quadrant OPBQ of a circle. If OA = 21 cm, find the area of the shaded region.

In the following figure, AB = 36 cm and M is mid-point of AB. Semi-circles are drawn on AB, AM and MB as diameters. A circle with centre C touches all the three circles. Find the area of the shaded region.

In the following figure, shows a kite in which BCD is the shape of a quadrant of a circle of radius 42 cm. ABCD is a square and Δ CEF is an isosceles right angled triangle whose equal sides are 6 cm long. Find the area of the shaded region.

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 outer and inner perimeters of a circular path is 23 : 22. If the path is 5 metres wide, the diameter of the inner circle is
In the given figure, ∆ABC is right-angled at A. Semicircles are drawn on AB, AC and BC as diameters. It is given that AB = 3 cm and AC = 4 cm. Find the area of the shaded region.

In the given figure, ABCD is a rectangle inscribed in a circle having length 8 cm and breadth 6 cm. If π = 3.14, then the area of the shaded region is:

A bicycle wheel, diameter 56 cm, is making 45 revolutions in every 10 seconds. At what speed in kilometre per hour is the bicycle traveling?
