ashyln1609 ashyln1609

29-01-2017
Mathematics

contestada

The formula for the area of a circle is A = r 2. Classify the area of a circle with a radius of 0.75 centimeters as either rational or irrational.

a) rational

b) irrational

Respuesta :

29-01-2017

First:The area of a circle is πr squared. Not r2
Second. The area of the circle HAS to be irrational because π is an irrational number. The answer would be, if solved for a circle with the radius of 0.75, the area would be 0.5625π, which is irrational.

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