Exercise 2.1

Find the missing value for the parallelogram.

Find the missing value for the parallelogram.

Find the missing value for the parallelogram.

Suresh won a parallelogram-shaped trophy in a state-level chess tournament. He knows that the area of the trophy is $735 \mathrm{sq}.\mathrm{cm}$ and its base is $21 \mathrm{cm}$. What is the height of that trophy?

Janaki has a piece of fabric in the shape of a parallelogram. Its height is $12 \mathrm{m}$ and its base is $18 \mathrm{m}$. She cuts the fabric into four equal parallelograms by cutting the parallel sides through its midpoints. If the area of each new parallelogram is $k {\mathrm{m}}^2$, find the value of $k$

A ground is in the shape of parallelogram. The height of the parallelogram is $14$ metres and the corresponding base is $8$ metres longer than its height. If the cost of levelling the ground at the rate of $₹15$ per $\mathrm{square} \mathrm{m}$ is $₹k$, then find the value of $k$.

What happens to the area of the parallelogram if the base is increased $2$ times and the height is halved?

In a parallelogram the base is three times its height. If the height is $8 \mathrm{cm}$ then the area is