Question
The surface area of a sphere is $5544cm^2$, find its diameter.
✓
Answer
Surface area of a sphere is $5544 cm 24 \pi r ^2=5544$
$4 \times 3.14 \times(r)^2=5544$
$r^2=\frac{5544 \times 7}{88}$
$r=\sqrt{21 cm \times 21 cm}$
$r=21 cm$
Diameter $=2($ radius $)=2(21)=42 cm$
$4 \times 3.14 \times(r)^2=5544$
$r^2=\frac{5544 \times 7}{88}$
$r=\sqrt{21 cm \times 21 cm}$
$r=21 cm$
Diameter $=2($ radius $)=2(21)=42 cm$
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