Practice

What is the area formula?

• $\pi r^2$

• $2\pi r$

• $a^2+b^2=c^2$

• $a\times b=c\times d$

What type of line extends to both edges of the circle and goes through the center?

• radius

• tangent

• diameter

• secant

How many degrees are in a circle?

• $90\degree$

• $180\degree$

• $270\degree$

• $360\degree$

How many times does a tangent intersect a circle?

• 3

• 1

• 2

• 4