The price of a computer after discount was $850. If the discount was 25%, what was the original price of the computer?
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Answer:
Step-by-step explanation:
The given equation is A=4 πr².
We need to solve the above equation for r².
We have,
A=4πr²
Dividing both sides by 4π, we get :
Hence, the value of r² is equal to .