A hemispherical bowl has a radius of 3.5 cm, then its curved surface area is
A. 77 cm2
B. \(\frac{231}{2}\)cm2
C. \(\frac{539}{6}\)cm2
D. \(\frac{77}{2}\)cm2
Answer:A
A hemispherical bowl has a radius of 3.5 cm, then its curved surface area is
A. 77 cm2 B. \(\frac{231}{2}\)cm2 C. \(\frac{539}{6}\)cm2 D. \(\frac{77}{2}\)cm2