Question

Surface area of a solid sphere is 4 square centimeters. If it is cut into two hemispheres , what would be the surface area of each hemisphere ?

• A. 2 sq cm
• B. 3 sq cm
• C. 2∏ sq cm
• D. 3∏ sq cm

Answer 1

Answer:

B. 3 sq cm

4∏r²=4 ∏r² = 1 3∏r² = 3 x 1 = 3