Advertisements
Advertisements
प्रश्न
Circumferences of two circles are equal. Is it necessary that their areas be equal? Why?
उत्तर
If circumference of two circles are equal, then their corresponding radii are equal. So, their areas will be equal.
APPEARS IN
संबंधित प्रश्न
The inner circumference of a circular track is 220 m. The track is 7m wide everywhere. Calculate the cost of putting up a fence along the outer circle at the rate of j – 2 per metre. (Use π = 22/7)
The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is traveling at a speed of 66 km per hour? [Use Π = 22/7]
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
28 mm
In the given figure,
\[\square\] PQRS is a rectangle. If PQ = 14 cm, QR = 21 cm, find the areas of the parts x, y, and z.
In the given figure, APB and AQO are semicircles and AO = OB. If the perimeter of the figure is 40 cm, find the area of the shaded region.
A conical tent requires 264 m2 of canvas. If the slant height is 12 m, find the vertical height of the cone.
A 4.2 m wide road surrounds a circular plot whose circumference is 176 m. Find the cost of paving the road at Rs 75 m 2.
Find the area and perimeter of the following sector :
Radius= 6 cm, angle at the centre is 70°
Each wheel of a car is of diameter 80 cm. How many completer revolutions does each wheel make in 10 minutes when the car is traveling at a speed of 66 km per hour?
The circumference of a given circular park is 55 m. It is surrounded by a path of uniform width of 3.5 m. Find the area of the path.
