S Purkayastha Solutions for Chapter: Area of Polygons, Exercise 5: MENTAL MATHS

Which has a greater area

A rectangle and a square have equal area. Find out which will have the larger perimeter.

In the figure, $\mathrm{A},\mathrm{B}$ and $\mathrm{C}$ are three squares with side lengths $a,b,c$ respectively.If $\mathrm{A}=81{\mathrm{m}}^2, \mathrm{B}=49 {\mathrm{m}}^2$, then the area of $\mathrm{C}$ is.