Question

Calculate the area of a square inscribed in a circle of radius 7.5 cm.
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Answer 1

Diameter of circle = Diagnol if square

Radius if circle= 2x7.5=15cm

Diameter of circle= 15x2= 30cm

So,

√2xSide= 30cm

side= 30/√2=15√2cm

Area of square=

$(side) ^{2}$

15√2x15√2=450cm

this is your answer I hope it will help you