1978 AHSME Problems/Problem 2
Problem 2
If four times the reciprocal of the circumference of a circle equals the diameter of the circle, then the area of the circle is
Solution 1
Creating equations, we get . Simplifying, we get . Multiplying each side by , we get . Because the formula of the area of a circle is , we multiply each side by to get . Therefore, our answer is
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See Also
1978 AHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 1 |
Followed by Problem 3 | |
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