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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Geometry
6.28 Surface Area of a Sphere - II

Example:
Find the surface area of the sphere of diameter is 10.5 cm.
Solution:
Surface area of sphere = pi * d2 (this equation if we know diameter)
Given that,
d = 10.5 cm.
= 22/7 * 10.5 * 10.5
= 346.5 Sq. cm.
Directions: Solve the following problems. Also write at least 5 examples of your own.
Q 1: Find the surface area of the sphere of diameter is 50.4 cm.
7938.63 Sq. cm.
7983.63 Sq. cm.
7938.36 Sq. cm.
7983.36 Sq. cm.

 Q 2: Find the surface area of the sphere of diameter is 88.2 cm.
24444.04 Sq. cm.
2449.04 Sq. cm.
24494.04 Sq. cm.
24449.04 Sq. cm.

Q 3: Find the surface area of the sphere of diameter is 21 cm.
1386 Sq. cm.
1382 Sq. cm.
1388 Sq. cm.
1384 Sq. cm.

 Q 4: Find the surface area of the sphere of diameter is 35 cm.
3852 Sq. cm.
3850 Sq. cm.
3856 Sq. cm.
3848 Sq. cm.

Q 5: Find the surface area of the sphere of diameter is 8.4 cm.
225.76 Sq. cm.
221.76 Sq. cm.
227.76 Sq. cm.
223.76 Sq. cm.

 Q 6: Find the surface area of the sphere of diameter is 7 cm.
156 Sq. cm.
158 Sq. cm.
152 Sq. cm.
154 Sq. cm.

Question 7: This question is available to subscribers only!

 Question 8: This question is available to subscribers only!


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