The curved surface area of a hemisphere with radius 7 cm is: (Take π = $\frac{22}{7}$)
Answer & explanation
Correct answer: option 4
We know that,
Curved surface area of hemisphere = 2πr2
We have,
Radius of hemisphere r = 7 cm
Curved surface area of hemisphere = 2 × \(\frac{22}{7}\) × 7× 7 = 308 cm2