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9 in.In the figure shown, the radius of the inscribed circle is 9 inches.81 inchesD)E)100 inchesWhat is the perimeter of square ABCD?A) 18 inchesB) 36 inches72 inches



Answer :

1)

A circle with radius 9in is inscribed in the square. such that the sides of square are toch the circle.

So, Diameter of the circle = Side of square i.e. AB = ML

Diamter is the twice of the radius,

Here radius = 9 in

So, Diameter = 9 x 2

Diameter = 18in

As the diameter and sides are equal, so AB = 18 in

The general expression for the perimeter of square = 4 x side

Perimeter of Square = 4 x 18

Perimeter of square = 72in

Answer : C) 72 in

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