If the total surface area of a solid hemisphere is 462 cm2, find its volume. [Take π = 227]
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Answered by
2
TSA OF hemisphere= 3pir²=3*22/7*r²
462 =66/7*r²
462*7=66r²
3234/66=r²
49=r²
7=r
Volume= 2/3*pi*r³
= 2/3*22/7*(7*7*7)
=44/21*(7*7*7)
=44*7*7/3
=2156/3
=718.66
Answered by
1
TOTAL SURFACE AREA OF HEMISPHERE=3πr²=462cm²(given)
=r²=462x7
______
3x22
=r²=49
=r=7cm
VOLUME OF HEMISPHERE=2
___πr³
3
=2. 22
___x. ___. x. 7³
3. 7
=2156
______ cm³
3
=718.67 cm³
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