Rashmi Bhartiya Solutions for Chapter: Area and Perimeter, Exercise 9: Worksheet - 64

If the length and the width of a rectangle are each doubled, by what percent is the area increased?

If the ratio of diameters of two circles is $3:5$, then the ratio of their circumferences is
 

The approximate value of the constant $\mathrm{\pi }$ is

If the base of a triangle is halved and altitude doubled, then its area is

If the circumference of a circle is $44 \mathrm{cm}$, then its area is
 

If the equal sides of a right angled triangle are $10 \mathrm{cm}$ each, then its area is
 

If the breadth of a rectangle is $x$ and its length is thrice its breadth, then its area is