The circumference of a circle is 65π. in terms of pi, what is the area of the circle?

In the diagram below, tan θ = sqrt 3. what is the value of m?

Which best explains why this triangle is or is not a right triangle?

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.