Proving triangles are right triangles.

In triangle XYZ, the sides XY, YZ and XZ measure 12 ft, 16 ft and 20 ft respectively. Prove that XYZ is a right triangle. (Pythagorean Theorem and identify right triangles)

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

Which expression will have the same sum as 3_8 + 1/4?