Mathematics for IGCSE & O level - Mensuration (Section 1 - No. 42)

What is the formula for the surface area of a cone?

πrl

2πr²

πr²

πr(r+l)

Vysvětlení

Surface area = πrl (Curved Surface) and the area of the base= πr²

Komentáře (0)

Inzerát