10
QuizMultiple Choice

Surface Area

Question 10 • Mathematical Models with Applications - MA4072 CR

A sphere has a radius of 3m. Calculate its surface area and round to the nearest hundredth for your final answer.

Answer
A
125.63 sq. m
B
113.04 sq. m
C
120.3 sq.m
D
123.8 sq.m

Explanation

The surface area of a sphere is 4πr². With radius 3 m, this is 4 × 3.14 × 3² = 113.04 square meters, so the correct choice is B, 113.04 sq. m.

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