Total Surface Area of Hemisphere
Total Surface Area of Hemisphere
Total Surface Area of Hemisphere: The total surface area of Hemisphere of radius r is given by
Illustration: Find the surface area and total surface area of a hemisphere each of radius 10cm. .
Solution: We have, r = 10cm
Surface Area
Total Surface Area =
Illustration: The radius of a hemispherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the ratios of the surface areas of the balloon in the two cases.
Solution: Let and
be the surface areas of the hemispherical balloon when its radii are 7 cm and 14 cm respectively. Then,
The total surface area of a hemisphere of radius r is given by | |||
| Right Option : C | |||
| View Explanation | |||
The total surface area of a hemispherical solid having radius 7 cm is ______________________ | |||
| Right Option : C | |||
| View Explanation | |||
A cone hemisphere and a cylinder stands on equal bases and have the same height, the height being equal to the radius of the circular base, then their whole surface areas in the ratio. | |||
| Right Option : A | |||
| View Explanation | |||
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