Question

the area of circpe is equal to the area of a rectangle with sides 112m and 88m,respectively.Find the cicumference of the circle.​

Answer 1

Answer:

352 cm

Step-by-step explanation:

First, Finding area of rectangle -

Length * Breadth = 112*88 = 9856.

Therefore,

πr² = 9856.

∴ r² = 9856×7/22

= 448×7

=3136.

∴r² = 3136

r= √3136

= 56.

Now, radius is 56.

So, circumference =

2πr

∴ 2×22/7×56

= 22×16

=352 cm.

So, the Circumference of circle is 352 cm.

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Answer 2

Answer:

Area of circle = area of rectangle

πr² = l×b

22/7 × r² = 112×88

r² = 9856 × 7/22

r² = 4928 × 7/11

r² = 3136

r =√3136

r =56

Circumference of a circle = 2πr

=> 2×22/7×56

=> 44×8

=> 352cm