Question

Irfan and Nishant where painting a wall Irrfan painted the Diamond shaped portion and Nishant painted the rest what area did each paint. how to find??!?

Answer 1

Visualize the entire wall into 4 smaller rectangular pieces as marked by dotted lines.

Each of these 4 smaller rectangular pieces is split into half by their respective diagonals. Thus, the Diamond shaped area is actually formed by one-half of these 4 rectangular pieces.

Thus, both Irfan and Nishant have painted one-half of the wall. Which can be measured by (half the length of the wall * Entire breadth of the wall) OR (Entire length of the Wall * Half the breadth of the Wall) ie. (4 * 2.4) or (8 * 1.2) which is 9.6 square meters.