Question

the radius of the sphere is 3.5cm find surface area nd volume

Answer 1

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Answer 2

surface area =
$4\pi \times r^{2}$
4×22/7×3.5×3.5 =154 cm^2

volume =
$\frac{4}{3} \pi \times r ^{3}$
4/3×22/7×3.5×3.5×3.5
=179.67cm^3