plz answer these questions with the step by step explanation
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✨Here is your answer ✨
1) we know that area of spherical shell = 4/3π(R³-r³)
= 4/3π218=. 872π/3 (b).
2) 4πr² = 4/3πr³
so, r = 3 (a)
3) 4/3πr³ = 48×48π
r³ = 48×48×3/4
r³ = 36×48
r = 12
area = 4×144π
= (24)²π cm
4) 4πr² = πrl
r² = 65 will be nearest to 8 cm (d)
5) no. of balls ,= total volume/ vo. of 1 small ball
= 4/3π(8)³/4/3π1³
so, ball = 512 balls (c)
✨ HERE IS YOUR ANSWER ✨
1) we know that area of spherical shell = 4/3π(R³-r³)
= 4/3π218=. 872π/3 (b).
2) 4πr² = 4/3πr³
so, r = 3 (a)
3) 4/3πr³ = 48×48π
r³ = 48×48×3/4
r³ = 36×48
r = 12
area = 4×144π
= (24)²π cm
4) 4πr² = πrl
r² = 65 will be nearest to 8 cm (d)
5) no. of balls ,= total volume/ vo. of 1 small ball
= 4/3π(8)³/4/3π1³
so, ball = 512 balls (c)
✨ HERE IS YOUR ANSWER ✨
bro how u got 218 in 1st sum
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