Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with __________.
Solution:
Given, d is the diameter of a circle
We have to find the circumference of circle C
The circumference of a circle is its boundary or the length of the complete arc of a circle.
Diameter = d
Radius = diameter/2
r = d/2
So, d = 2r
Circumference of circle = 2πr
Where, r is the radius of circle
= π(2r)
= πd
Therefore, circumference, C = πd
Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with π
✦ Try This: Find the circumference of a circle with diameter 7 cm.
Given, the diameter of the circle is 7 cm.
We have to find the circumference of a circle.
Circumference of circle = πd
Where, d is the diameter of circle
= (22/7)(7)
= 22 cm
Therefore, the circumference is 22 cm.
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 11
NCERT Exemplar Class 7 Maths Chapter 9 Problem 48
Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with __________.
Summary:
Circumference ‘C’ of a circle can be found by multiplying diameter ‘d’ with π
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