Find the surface area of the sphere whose radius is 35 cm
- 15400 cm$\displaystyle ^{2}$
- 1540 cm$\displaystyle ^{2}$
- 154 cm$\displaystyle ^{2}$
- 15.400 cm$\displaystyle ^{2}$
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Correct answer
Explanation
The surface area of a sphere is given by 4 * pi * r^2. Using r = 35 and pi = 22/7, the area is 4 * (22/7) * 35 * 35 = 4 * 22 * 5 * 35 = 15400 cm^2.
AI explanation
Using the surface area formula for a sphere, which is 4 times pi times the radius squared, we substitute the given radius of 35 cm. The calculation becomes 4 multiplied by 22 divided by 7 multiplied by 35 multiplied by 35, where the 7 cancels out with one 35 to leave 5. Multiplying 4 by 22 by 5 by 35 results in a total surface area of 15400 square centimeters.