Charlotte is writing statements to prove that the sum of the measures of interior angles of triangle PQR is equal to 180°. Line m is parallel to line n.

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

What is the measure of one interior angle of a pentagon

Look at the example below which shows how the product property of radicals is used to simplify a radical. use the product property of radicals to simplify the following radical.