Im giving 50 !
according to cavalieri’s principle, which two solids would have congruent volumes?
a .a cone and a cylinder with equal base areas and heights
b. a cone and pyramid with equal base areas and heights
c. a cone and a rectangular prism with equal base areas and heights
d. a cylinder and a sphere with equal radii

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.