17. CCSS Identify Structure Write a subtraction sentence using integers. Then, write the equivalent addition sentence and explain how to find the
sum.

Is the orthocenter of a triangle on the inside ?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?