Question

Find the surface area of the solid
4 m- diameter
8.5 m height

Answer 1

The surface area is 132m²

Explanation:

Surface Area of a cylinder = 2πr (h + r)

diameter= 4m,

radius= diameter/ 2, radius= 4/2 = 2m

= 2π2 (8.5 + 2)

= 4π (10.5)

= 42π

= 42 × 3.142

= 131. 964

Hence, the surface area of the solid ≈132 m²