Mathematics for IGCSE & O level - Mensuration (Section 13 - No. 15)

Calculate the surface area of a solid hemisphere with base radius 7.1cm and slant height 9.7cm.

361.9 cm²

363.5 cm²

348.5 cm²

320 cm²

Area of base = πr² = 158.4cm²; Curved surface area = 2πr² = 316.8cm²; Total Surface Area = 158.4 + 316.8= 475.2cm²