What is the surface area of this right cone?

What percent of 18 is 24? and plz explain thx.

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,

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.