Two identical solid hemispheres of equal base radius r cm are stuck together along their bases. The total surface area of the combination is
A. 6πr2
B. 5πr2
C. 4πr2
D. 3πr2
Answer:C
Two identical solid hemispheres of equal base radius r cm are stuck together along their bases. The total surface area of the combination is
A. 6πr2 B. 5πr2 C. 4πr2 D. 3πr2