find c.s.a and t.s.a of a hemisphere of diameter 7 cm
Answers
Answered by
2
Radius of hemisphere = diameter/2
= 7/2 cm
Volume of hemisphere = 2/3 π r
= 2/3 * 22/7 * 7/2
= 22/3
= 7.33 cm³
Now,
Curved surface area = 2 π r²
= 2 * 22/7 * (7/2)²
= 2 * 22/7 * 49/4
= 77 cm²
Total surface area = 3 π r²
= 3 * 22/7 * (7/2)²
= 3 * 22/7 * 49/4
= 115.5 cm²
Answered by
3
Answer:
2π×49/4
49π/2=csa
3π×49/4
147π/4=tsa
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