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Date:___________________

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Geometry
6.31 Surface Area of Hemisphere

Example:
The radius of a hemisphere is 7 cm. Find its surface area.
Solution:
Surface area of hemisphere = 2 * pi * r2
Given that,
radius (r) = 7 cm.
= 2 * 22/7 * 7 * 7
= 308 Sq. cm.
Directions: Solve the following problems. Also write at least 5 examples of your own.

Name: ___________________

Date:___________________

Geometry
6.31 Surface Area of Hemisphere

Q 1: The radius of a hemisphere is 19.6 cm. Find its surface area.
2412.72 Sq. cm.
2414.72 Sq. cm.
2416.72 Sq. cm.
2410.72 Sq. cm.

Q 2: The radius of a hemisphere is 6.3 cm. Find its surface area.
250.48 Sq. cm.
249.48 Sq. cm.
247.48 Sq. cm.
246.48 Sq. cm.

Q 3: The radius of a hemisphere is 3.5 cm. Find its surface area.
73 Sq. cm.
79 Sq. cm.
77 Sq. cm.
75 Sq. cm.

Q 4: The radius of a hemisphere is 10.5 cm. Find its surface area.
694 Sq. cm.
691 Sq. cm.
693 Sq. cm.
692 Sq. cm.

Q 5: The radius of a hemisphere is 17.5 cm. Find its surface area.
1921 Sq. cm.
1925 Sq. cm.
1927 Sq. cm.
1923 Sq. cm.

Q 6: The radius of a hemisphere is 5.25 cm. Find its surface area.
171.25 Sq. cm.
173.25 Sq. cm.
172.25 Sq. cm.
170.25 Sq. cm.

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Question 8: This question is available to subscribers only!


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