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Surface Area And Volume of Sphere — Maths STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9MathsSurface Area And Volume of Sphere1 Mark
Question
Find the volume of a sphere whose diameter is:2.1m
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Answer

Diameter = 2.1m, Radius (r) $=\frac{2.1}{2}=1.05\text{m}$ Therefore volume $=\frac{4}{3\pi\text{r}^3}$$=\frac{4}{3}\times\frac{22}{7}\times(1.05)^3=4.851\text{m}^3$

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