R S Aggarwal Solutions for Chapter: Mensuration, Exercise 8: TEST PAPER-20

The area of a square is $50 {\mathrm{cm}}^2$. The length of its diagonal is:

The length and breadth of a rectangular park are in the ratio $4 : 3$ and its perimeter is $56 \mathrm{m}$. The area of the field is:

The sides of triangle are $13 \mathrm{cm}, 14 \mathrm{cm}$ and $15 \mathrm{cm}$. The area of the triangle is:

Each side of an equilateral triangle is $8 \mathrm{cm}$. Its area is:

One side of a parallelogram is $14 \mathrm{cm}$ and the distance of this side from the opposite side is $6.5 \mathrm{cm}$. Find the area of the parallelogram.

The lengths of the diagonals of a rhombus are $18 \mathrm{cm}$ and $15 \mathrm{cm}$. The area of the rhombus is:

If each side of a triangle is $a \mathrm{cm}$, then its area $=\sqrt{3}$ divided by _____$\times a^2$ ${\mathrm{cm}}^2$

Area of a circle $=2\pi r^2$