Dr. Sanjeev Verma and R.K. Tyagi Solutions for Chapter: Mensuration, Exercise 1: ASSIGNMENT 11.1

A rectangular field is $90 \mathrm{m}$ by $70 \mathrm{m}$. A man walks around it at the rate of $4 \mathrm{km}$ per hour. What time will he take in making $5$ rounds?

Find the perimeter of the rectangle whose length is $70 \mathrm{cm}$ and breadth is $30 \mathrm{cm}$.

A piece of wire is $96 \mathrm{cm}$ long. What will be the length of each side, if the string is used to form: a square?

A piece of wire is $96 \mathrm{cm}$ long. What will be the length of each side, if the string is used to form: an equilateral triangle?

A piece of wire is $96 \mathrm{cm}$ long. What will be the length of each side, if the string is used to form: a regular hexagon?

Two sides of a triangle are $13 \mathrm{cm}$ and $18 \mathrm{cm}$. The perimeter of triangle is $48 \mathrm{cm}$. What is the third side?

The perimeter of a triangle is $100 \mathrm{cm}$. If two sides are of $35 \mathrm{cm}$ and $30 \mathrm{cm}$, find the third side of the triangle.

Find cost of fencing a square park of side $325 \mathrm{m}$ at the rate of $₹25$ per metre.