In a given equation, C varies inversely with D. If C is 50 when D = 11.5 , find C when D = 20 A. 1000
B. 28.75
C. 575
D. 230

What percent of the circle below is shaded?

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 the diagram below,abc is congruent to dec what is the value of x