find t.s.a and volume of a hemisphere with a radius of 21 c.m.
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T. S. A. Of Hemisphere = 3*pi * r^2
= 3*22/7*21*21 cm ^2
=3*22*3*21 cm^2
=4158 cm^2.
Volume Of Hemisphere = 2/3*pi * r^3
= 2/3*22/7*21*21*21 cm^3
= 2*22*21*21 cm^3
= 19404 cm^3. It's solved.
= 3*22/7*21*21 cm ^2
=3*22*3*21 cm^2
=4158 cm^2.
Volume Of Hemisphere = 2/3*pi * r^3
= 2/3*22/7*21*21*21 cm^3
= 2*22*21*21 cm^3
= 19404 cm^3. It's solved.
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1
Hello users .....
Solution:-
We know that;
Total surface Area of hemisphere = 3πr²
And
Volume of hemisphere = 2/3 ×πr³
Here,
According to given;
T.S.Area = 3×πr²
= 3 × 22/7 × 21²
= 22×9 ×21
= 4158 cm²
And,
Volume = 2/3×πr³
= 2/3 × 22/7 × 21³
= 44 × 21²
= 19404 cm³ Answer
✡⭐ Hope it helps ✡⭐
Solution:-
We know that;
Total surface Area of hemisphere = 3πr²
And
Volume of hemisphere = 2/3 ×πr³
Here,
According to given;
T.S.Area = 3×πr²
= 3 × 22/7 × 21²
= 22×9 ×21
= 4158 cm²
And,
Volume = 2/3×πr³
= 2/3 × 22/7 × 21³
= 44 × 21²
= 19404 cm³ Answer
✡⭐ Hope it helps ✡⭐
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