Jose Paul Solutions for Chapter: Area of Quadrilaterals, Exercise 3: EXERCISE 15.3

Find the area of the shaded portion.

The diagonals of a rhombus are $12 \mathrm{cm}$ and $16 \mathrm{cm}$. Find the area and also the length of the sides of the rhombus.

If the area of the shaded portion is $S {\mathrm{cm}}^2$, then find the value of $S$.

If the side of a square is doubled, what happens to the area? 

If the sides of the rectangle are doubled, what happens to the area? 

If the base and altitude of a parallelogram are doubled, what happens to the area?

If the base and altitude of a triangle are doubled, what happens to the area? 

A room $6 \mathrm{m}$ long $4 \mathrm{m}$ wide needs $1000$ tiles for its floor. How many tiles will be needed for a hall $12 \mathrm{m}$ long and $8 \mathrm{m}$ wide?