Question

Que.3) The radius of the sphere is 1.41cm. Express its volume to an appropriate significant
figures
13 MARK​

Answer 1

Radius of the sphere, r=1.41cm (3 significant figures)

Volume of the sphere,

V=34πr3=34×3.14×(1.41)3cm3=11.736cm3

Rounded off upto 3 significant figures =11.7cm3.

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Answer 2

ANSWER :12

EXPLAINING :

So, here we can see

that r=1.41 then, volume of

sphere=4/3πr³

4/3×22/7×1.41×1.41×1.41

4/3×22/7×141/100×141/100×141/100

here,

we can see cut outing

so, we get that,

11.7 (approx 12)

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