A hemisphere has a diameter of 14 cm. Calculate its total surface area.
Show answer & explanation
Correct answer: C
Explanation
Diameter = 14 cm ⇒ Radius = 7 cm
Total Surface Area of the Hemisphere = 3πr²
= 3 × π × 7²
= 3 × π × 49
= 147π
147 × 22/7 = 462 cm²