Circumference ‘C’ of a circle is equal to 2π × ______.
Solution:
Given, circumference ‘C’ of a circle is equal to 2π × _____
We have to fill in the blanks with suitable answers to make the statement true.
Circumference of circle = 2πr
Where, r is the radius of circle
Therefore, circumference ‘C’ is equal to 2π × r
✦ Try This: Find the circumference of semicircle with diameter 21 cm.
Given, the diameter of the semicircle is 21 cm.
We have to find the circumference of the semicircle.
Circumference of semicircle = πd/2
Where, d is the diameter of circle
= (22/7)(21)/2
= 22(3)/2
= 11(3)
= 33 cm
Therefore, the circumference of the semicircle is 33 cm.
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 11
NCERT Exemplar Class 7 Maths Chapter 9 Problem 49
Circumference ‘C’ of a circle is equal to 2π × ______.
Summary:
Circumference ‘C’ of a circle is equal to 2π × r(radius)
☛ Related Questions:
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