Advertisements
Advertisements
Question
Circumference ‘C’ of a circle is equal to 2π × ______.
Advertisements
Solution
Circumference ‘C’ of a circle is equal to 2π × r.
Explanation:
Circumference of a circle = 2π × r
APPEARS IN
RELATED QUESTIONS
In Fig. 4, O is the centre of a circle such that diameter AB = 13 cm and AC = 12 cm. BC is joined. Find the area of the shaded region. (Take π = 3.14)

From a circular sheet of radius 4 cm, a circle of radius 3 cm is removed. Find the area of the remaining sheet. (Take π = 3.14)

Find the length of the arc of a circle of diameter 42 cm which subtends an angle of 60° at the centre.
Find the area and perimeter of the circle with the following:
Diameter= 35 cm
A conical tent requires 264 m2 of canvas. If the slant height is 12 m, find the vertical height of the cone.
A conical tent with a capacity of 600 m3 stands on a circular base of area 160 m2 Find in m2 the area of the canvas.
The diameter of a circle is 28 cm.
Find its :
(i) Circumference
(ii) Area.
Using a ruler and compasses only:
(i) Construct a triangle ABC with the following data: AB = 3.5 cm, BC = 6 cm and ∠ ABC = 120°.
(ii) In the same diagram, draw a circle with BC as diameter. Find a point P on the circumference of the circle which is equidistant from AB and BC.
(iii) Measure ∠ BCP.
Find the area and perimeter of the circles with following: Radius = 10.5cm
A ground is in the form of a circle whose diameter is 350 m. An athlete makes 4 revolutions. Find the distance covered by the athlete
