Question

EXERCISE 13.8
Q.1. Find the volume of a sphere whose radius is
(i) 7 cm
(ii) 0.63 m​

Answer 1

Answer:

Step-by-step explanation:

i) Radius of the sphere(r) = 7 cm

 Volume of the sphere = 4/3πr³

= (4/3 × 22/7 × 7 × 7 × 7)

=(88×7×49)/3×7

=4312/3= 1437 ⅓

= 1437 ⅓ cm³

 

Volume of the sphere =1437 ⅓ cm³

 

(ii) Given:

Radius of the sphere(r) = 0.63 m

Volume of the sphere = 4/3πr³

= (4/3 × 22/7 × 0.63 × 0.63 × 0.63)

 

= 4×22×.09×.21× 0.63

= 1.0478 m³

Volume of the sphere =1.0478 m³

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Answer 2

dude use the formula

4/3*pi*r^3

SRY FOR NOT EXPLAINING FULLY...I WANT U TO TRY IT URSELF IT'S EASY...

HOPE MY ANSWER HELPED U...DROP A ❤ IF U UNDERSTOOD IT...IF DIDN'T UNSTERSTAND ...SRY I TRIED MY LEVEL BEST