Question

Find the volume and surface area of a sphere of radius 42 cm​

Answer 1

Answer:

$\frac{42}{2} = 21 \\ \frac{1}{2} \times 21 = 10.5$

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Answer 2

Volume of a Sphere =3,10,464 cm³ , Surface Area of Sphere =22176 cm²

Step-by-step explanation:

Volume of a Sphere = (4/3) π R³

R = radius of Sphere  = 42 cm

π = 22/7

=> Volume of a Sphere = (4/3)  (22/7) 42³

=  4 * 22 * 42² * 2

= 3,10,464 cm³

Surface Area of Sphere = 4π R²

= 4 (22/7) 42²

= 22176 cm²

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