What’s the area of the shaded region? Given that the side of the square = 1 un

Question

What’s the area of the shaded region? Given that the side of the square = 1 unit.

Options:

A . π2

B . 12

C . (π4) - (12)

D . (π2) - 1

Answer: Option D
:
D
Ans: d)
Soln: Consider the double shaded area.

Area: (Area of quadrant) – (Area of triangle).
(

\frac{π}{4}

)-(

\frac{1}{2}

x 1 x 1). Total shaded area is twice of this
= 2 (

\frac{π}{4}

) - (

\frac{1}{2}

x 1 x 1); =

\frac{π}{2}

-1,

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