A cylinder, opened at one end, has a radius of 3.5cm and height 8cm. calculate the total surface area

Assessment: WAEC SSCE - General Mathematics - 2022 (Objective) Subject: General Mathematics

Question 1 Report

A cylinder, opened at one end, has a radius of 3.5cm and height 8cm. calculate the total surface area
Answer Details

The surface area of an open-top cylinder = πr(r + 2h),

where 'r' is the radius and 'h' is the height of the cylinder.

= 227
 * 3.5 (3.5 + 2 * 8)

= 11 (3.5 + 16) → 11 (19.5)

= 214.5cm2

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