Hello, saroja!

A semicircle of radius has a perimeter ofTheperimeterof a semicircle is same as theperimeterof a square.

Then: .[areaof semi-circle] .(> or <) [areaof square] ?

A square of side has a perimeter of

. . Hence, we have: .

Square both sides: .

Multiply both sides by

We have: .

Therefore: .