Quadrilateral DEFG has vertices at D(−2,2), E(−1,4), F(2,3), and G(−1,−2). Find the vertices of the quadrilateral after a dilation with scale factor 3.5. D'(−7, 7), E'(−3.5, 14), F'(7, 10.5), and G'(−3.5, −7)
D'(1.5, 5.5), E'(2.5, 7.5), F'(5.5, 6.5), and G'(2.5, 1.5)
D'(−6, 6), E'(−3, 12), F'(6, 9), and G'(−3, −6)
D'(7, −7), E'(3.5, −14), F'(−7, −10.5), and G'(3.5, 7)

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.