Mathematics for IGCSE & O level - Mensuration (Section 3 - No. 38) | ExamPlay

Mathematics for IGCSE & O level - Mensuration (Section 3 - No. 38)

A sphere has a surface area of 1274 cm². Calculate the radius.

10 cm

18 cm

20 cm

12 cm

Explanation

SA = 4πr². So, r = √(SA / 4π). r = √(1274 / 4π) ≈ 10 cm

Comments (0)

Advertisement