CBSE Notes, Lectures

CBSE - Mathematics - Surface Areas and Volumes

Surface Areas and Volumes

NCERT Exercise Exercise 13.4

Find the total surface area of a hemisphere of radius 10 cm. (Use π = 3.14)

r = 10 cm  
Total surface area of hemisphere = 3πr2
                                                     = (3 × 3.14 × 10 ×10) cm2
                                                     = 942 cm2

.