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Please answer with clear instructions so that i can apply this to other questions

Please Answer With Clear Instructions So That I Can Apply This To Other Questions class=

Sagot :

Answer:  115.74

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Explanation:

The area of the square is 12*12 = 144 square cm since each side is 12 cm long.

If we were to glue together all of those quarter-circle pieces, then we'd form a full circle of radius 3 cm. The area of that said circle is pi*r^2 = pi*3^2 = 9pi

The shaded area is therefore exactly 144-9pi square cm

Plug in pi = 3.14 to get the approximate value

144-9pi = 144-9*3.14 = 115.74