Question 32
Mensuration of SolidsThe total surface area of a hemisphere is 75π cm2. Find is radius.
- A.5.0 cm
- B.7.0 cm
- C.8.5 cm
- D.12.0 cm
Show the answer and explanation
Answer: A (5.0 cm)
Explanation
3πr² = 75π, so r² = 25 and r = 5 cm.
The total surface area of a hemisphere is 75π cm2. Find is radius.
Answer: A (5.0 cm)
3πr² = 75π, so r² = 25 and r = 5 cm.