Question

find the surface area of this cylinder. use 3.14 for π. r = 5 m h = 3 m surface area of a cylinder la = 2πrh sa = la + 2b la = 94.2 m² sa = ? m² round your answer to the nearest tenth

Explanation:

Step1: Calculate the area of the base

The formula for the area of a circle \( B=\pi r^{2} \). Given \( r = 5m \) and \( \pi=3.14 \), then \( B = 3.14\times5^{2}=3.14\times25 = 78.5m^{2} \)

Step2: Calculate the surface area

The formula for the surface area of a cylinder \( SA=LA + 2B \). Given \( LA = 94.2m^{2} \) and \( B = 78.5m^{2} \), then \( SA=94.2+2\times78.5 \)

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Answer:

\( 251.2 \)