Advertisements
Advertisements
Question
Ratio of circumference of a circle to its radius is always 2π : 1.
Options
True
False
Advertisements
Solution
This statement is True.
Explanation:
∵ Circumference : Radius = 2πr : r = 2π : 1
APPEARS IN
RELATED QUESTIONS
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`)
21 cm
Choose the correct alternative answer for the following question.
The radii of two concentric circles are 19 cm and 16 cm respectively. The area of the ring enclosed by these circles is
Find the area and perimeter of the following sector :
Diameter = 42 cm, angle at the centre is 100·.
Find the volume and the surface area of the spheres in the following :
Diameter= 6.3 cm
The radii of two circles are 25 cm and 18 cm. Find the radius of the circle which has a circumference equal to the sum of circumferences of these two circles.
Find the dimensions of a rectangular park whose perimeter is 60 m and area 200 m2.
Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with ______.
A dinner plate is in the form of circle. A circular region encloses a beautiful design as shown in the following figure. The inner circumference is 352 mm and outer is 396 mm. Find the width of circular design.

