AreaAreas of Parallelograms and Triangles — Maths STD 9 — Question

Solution:

1. The $\triangle\text{ABC}$ and $\triangle\text{DCB}$ are between the same parallel lines, AD and BC and on the same base BC.

3. The $\triangle\text{PLM}$ and ||gm OLMN are between the same parallel lines, ON and LM and on the same base LM.

4. The ||gm ABCD and ||gm ABPQ are between the same parallel lines, QC and AB and on the same base AB.

2. The $\triangle\text{PQR}$ and $\triangle\text{SRQ}$ are on the same base QR. But not between the same parallel.