 Hi, and welcome to the session. Let us discuss the following question. The question says, which of the following figures lie on the same base and between the same parallel? In such a case, write the common base and the two parallel. Now, this is the first figure given to us. Before solving this question, we should know that two figures are said to be on the same base and between the same parallel, A point is they have a common base, B point is the vertices opposite common base of each figure lie on a line to the base. This is the key idea in this question. Now, begin with the solution. A parallelogram 3D, QD, on the same base, AD, TCD, and APQD are on the same base, AT. So this proves A point that both the figures should have the common base. Let's now verify the B point. The vertices, Q, QD, CD, to the base, AD, the same line, which is parallel to AD. So this verifies our B point. So the given two figures, APQD and ABCD, are on the same base, AD, between the same parallel and B Q.