Question

A can of beans has surface area 329 cm². Its height is 14 cm. What is the radius of the circular top?​

Answer 1

surface area = (2 x pi x radius x height) + 2 x pi x radius^2
radius = 1/2 x (square root of 14^2 + 2 x 329 / pi) - 14 / 2
radius = 3.07 to 2dp