Question

The point (3,0) lies on a circle with the center at the origin. What is the area of the circle to the nearest hundredth?
THANK YOU!

Answer 1

clearly the radius of the circle is 3.

So, what is pi * 3^2 ?

Answer 2

If the point, (3,0) lies on the center, clearly it has to be the radius because half the diamenter is the radius. If u don't believe try it out urself, im sure u will get ur answer

Answer 3

Radius is 3

Pi times 3^2 = 28.27 rounded
A = 28.27 rounded

Answer 4

The center is at the origin and the point (3,0) lies on the circle, so r=3

A=pie x r squared
A=pie x 3 squared
A=9 x pie
A= 28.27

Answer 5

So then how do u know that the 3 is the radius....it doesn’t say it.

Answer 6

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