Math, asked by dhruv491081, 11 months ago

find the s.a and volume of a sphere of radius 1.4 cm

Answers

Answered by Brâiñlynêha

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$\sf Volume \:of\: sphere=\frac{4}{3}πr{}^{3}$

Given r=1.4

$\sf volume\:= \frac{4}{3}×\frac{22}{7}×(1.4)×(1.4)×(1.4)$

$\sf =11.49$

$\sf surface\:area\:= 4πr{}{2}$

$\implies\sf 4×\frac{22}{7}×(1.4)×(1.4)$

$\sf surface\:area=24.63$

Answered by gautamkumar118

Step-by-step explanation:

R= 1.4 cm

Surface area of sphere=4¶r²

=4×22\7×1.4×1.4 cm

=44×.28 cm

=12.32 cm²

Now,

Volume of sphere =4/3¶r³

=4/3 × 22/7 × 1.4×1.4×1.4 cm

= 88/3 × 0.2×1.4×1.4 cm

=17.6/3 cm³

= 5.86 cm³

I hope you like it and mark brainliest.

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find the s.a and volume of a sphere of radius 1.4 cm​

Answers

find the s.a and volume of a sphere of radius 1.4 cm