The radius of a circle is 3 inches. What is the area of the circle in squared inches

Question

This is really hard for me help me solve it 

Answer 1

First, we need to know the formula for area of a circle.

Area of a circle = π*r² (Pi * radius squared)

Next, we plug the given radius value into the formula.

So if r=3, the area of the circle is π*3² = π*9. This is usually written with the "pi" after the arabic number: 9π ("nine pi")

 

Hope this helps!