A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm, find the total surface area of the article.

Radius of hemispherical part = radius of cylindrical part (r) = 3.5 cm
Height of cylindrical part (h) = 10 m
The total surface area of article
= CSA of cylindrical part + CSA of two hemispherical part
= 2πrh + 2 × 2πr²
= 2π × 3.5 × 10 + 2 × 2π × 3.5 ×3.5
= 70π + 49π = 119π
= 119 × (22/7) = 17 × 22 = 374 cm²
Hence, the total surface area of the article is 374 cm²