NO LINKS-Triangle BCD with vertices B2,-1) C(4,1) and D(5,-2) scale factor=3, centered at the origin

Which math sentence can be used to determine if the triangle is a right triangle?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf