Question

In the given figure PQRS is a rectangle inscribed in the circle with radius of 7 cm. If PS = 5 cm and PQ =

12 cm, find the area of un-shaded region. (Use π =

22

7

)​

Answer 1

Answer:

Let A be the area of shaded region and B be the area of one quarter circle.

4B= Area of circle of radius 6

=π(6)

2

=36π

A+4B= Area of PQRS(square)

⇒A+36π=12

2

=144

∴A=144−36π cm

2

So, area of shaded region=144−36π cm

2

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Answer 2

Answer:

this answer is right this question is of seventh class I know