Mathematics for IGCSE & O level - Mensuration (Section 8 - No. 22)

A cone has a base radius of 4.2 cm and a slant height of 15.0 cm. Calculate the height

14.3 cm

13.8 cm

14.9 cm

15.3 cm

The height is given by the Pythagorean Theorem as √(slant height² - radius²) = √(15² - 4.2²) ≈ 14.3 cm