The perimeter of the semicircle is 20 cm less than the perimeter of the square. The area of the square is equal to the area of the triangle. If the base and height of the triangle is 50 cm and 100 cm, respectively, then, find the area of the semicircle?
1
1825 sq. cm.
2
1655 sq. cm.
3
1525 sq. cm.
4
1225 sq. cm.
5
1925 sq. cm.