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Contests > Epoka Science Olympiad 2017 - 8th Grade > problem:


1. 51110 - The area of a circle

Epoka Science Olympiad 2017 - 8th Grade

Start: May.06.2017 at 10:00:00 AM
Finish: May.06.2017 at 12:30:00 PM
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Contest problems

• 1. 51110 - The area of a circle
• 2. 50890 - Convert Celsius to Fahr...
• 3. 51112 - Even Numbers
• 4. 51111 - Even Numbers

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Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.

The area of a circle

Question: Find the area of the circle with radius taken as an input from keyboard. The input can be a float number also the result should be a float number.

Input specification: One input : radius of the circle.

Output specification: Show the area of the circle.

Tips: Π is 3.14, Area = Πr2

Sample Input Sample Output
3
15
28.26
706.5



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