M is directly proportional to L^3
when L=2, M=160
Find the value of M when L=3

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

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.

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?