Question

find the circumference of inner and Outer circle shown in the given figure
plz answer fast and correct it my exam paper question​

Answer 1

$\boxed{\tt{\red{\fcolorbox{red}{pink}{AnsweR}}}}$ : circumference of outer circle = 119.32 m

circumference of inner circle = 25.12m

Given,

• Radius of the circle.
• Thickness of inner circle.

To find :

Circumference of inner and outer circle.

How to find :

By using the formula we will first find the outer circle. Then we will subtract the radius from thickness of inner circle. Then, after that we will find its circumference by the formula.

$\rm \blue {The \: formula \: is : 2πr}$

$\rm \blue {Radius \: of \: inner \: circle ⟹}$ $\rm\blue{ radius \: of \: outer \:circle\: - thickness\: of\: inner\: circle}$

Solution :

Radius of the outer circle (r) = 12.5 m

Circumference (c) = 2πr

⟹ 2 × 3.14 × 19 = 119.32 m

Now,

Radius of inner circle (r) = 12.5 - 8.5 m = 4 m

$\pink\therefore$ Radius of inner circle = 2πr

⟹ 2 × 3.14 × 4 = 25.12 m

Hope this helps you

$\underline\bold \red {@BrainlyHoney}$

Answer 2

Hope it helps ✅

$\rm \pink{\underline{\underline {\blue{See \: in \: attachment}}}}$