Question

The area of quadrant of a circle is 154 cm² , find its perimeter.​

Answer 1

Answer:

Let the radius of circle be r cm.

Now the area of circle⇒πr

2

=154cm

2

⇒

7

22

×r

2

=154cm

2

⇒r

2

=

22

154×7

⇒r

2

=49

⇒r=7cm

Perimeter of the circle=Circumference

=2πr

=2×

7

22

×7

=44cm

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Answer 2

Answer:

44cm

Explanation:

Given area of of quadrant circle = 154cm

=> area of circle = πr or 22/7

= 22/7 ×7×7

= 154cm

so radius of the circle = 7cm

perimeter of circle = 2πr

= 2×22/7×7

= 44cm

=> perimeter of the circle = 44cm

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