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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Find the circumference of the inner and the outer circles, shown in the adjoining figure. (Take π = 3.14)
Solution:
Radius of the outer circle (r₁) = 19 m
Circumference of outer circle = 2πr₁
= 2 × 3.14 × 19 m
= 119.32 m
Radius of inner circle (r₂) = 19 m – 10 m = 9 m
Circumference of outer circle = 2πr₂
= 2 × 3.14 × 9 m
= 56.52 m
☛ Check: NCERT Solutions for Class 7 Maths Chapter 11
Video Solution:
Find the circumference of the inner and the outer circles, shown in the adjoining figure (Take π = 3.14)
Maths NCERT Solutions Class 7 Chapter 11 Exercise 11.3 Question 15
Summary:
The circumference of the inner and the outer circles, shown in the given figure are 56.52 m and 119.32 m respectively.
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