et of radius 4 em, a circle of radius 3 cm is removed. Find the area,

1.	et of radius 4 em, a circle of radius 3 cm is removed. Find the area, of the remaining sheet. (Take π=3.14)
Answer» Area of the circle with radius 4 cm = πr² = π(4)² = 16 π cm² Area of the circle with radius 3 cm which is removed = π(3)² = 9π cm² Remaining area = 16π - 9π = 7π = 7 x 3.14 = 21.98 cm²

et of radius 4 em, a circle of radius 3 cm is removed. Find the area, of the remaining sheet. (Take π=3.14)

Answer»

Area of the circle with radius 4 cm = πr² = π(4)² = 16 π cm²

Area of the circle with radius 3 cm which is removed = π(3)² = 9π cm²

Remaining area = 16π - 9π = 7π = 7 x 3.14 = 21.98 cm²