Question

find the radius of circle whose circumference is 88 CM (take π=22/7)
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Answer 1

Answer:

616 cm²

Step-by-step explanation:

We know Circumference of a circle = 2πr

Where r is the radius of the circle

Circumference = 2πr (the value of π is 22/7)

88 = 2 × 22/7 × r

r = 88 × 7/44

r = 14 cms

The radius of the circle is 14 cms

We know Area of the circle = πr^2

Area = πr^2

Area of circle = 22/7 × 14 × 14

Area of circle = 22 × 2 × 14

Area of circle = 44 × 14

Area of circle = 616cm²

Answer 2

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★ Find the radius of the Circle whose Circumference is 88 cm . [π=22/7]

${\huge{\underline{\underline{\rm{\;\;Answer\checkmark}}}}}$

• Circumference = 88 cm .

${\sf{\boxed{Circumference=2πr}}}$

$\sf \mapsto \: 88cm \: = 2 \pi \: r$

$\mapsto \sf \: 88cm = 2 \times \dfrac{22}{7} \times r$

$\mapsto \sf \: \cancel{88}cm = \dfrac{ \cancel{44}}{7} \times r$

$\mapsto \sf \: 2cm = \dfrac{1}{7} \times r$

$\mapsto \sf \: r = 2 \times 7 \: cm$

$\mapsto \boxed{ \sf \: r = 14cm}$

So , the radius is 14 cm .