EXERCISE

If both the height and the base of a triangle are halved, then its area becomes the original area. times of

The perimeter of a square sheet is same as a rectangular sheet. If the side of the square sheet is $30 cm$ and the length of the rectangular sheet is $45 cm$, then area of the rectangular sheet is

 Amit wants to fence the triangular garden in front of his house on three sides with lengths $20.8 m, 12.5 m, 12.5 m$. Find the cost of fencing at the rate of $₹125$ per metre.

Riya wants to put a lace on the boundary of a circular table cover of diameter $2.1 m$. Find the cost of the lace at the rate of $15 per metre. (\pi = 3.14)$

 The figure is formed by $2$ quarter circles and the area of the shaded square is $49 c{m}^2$. Find the perimeter of the figure. (Take $\mathrm{\pi }= \frac{22}{7}$)

Match the shaded area

Match the following.

Find the area of a circle whose radius is $2.1 \mathrm{cm}$.