Dr. Lal and Jain Solutions for Exercise 1: Exercise 15

Find the length of the diagonal and the perimeter of a square plot if its area is $400$ square meters.

Find the diagonal of a square field whose side is $10$meter.

Find the radius of a circular table whose surface area is$154 cm$.

How many meters of a carpet $75 cm$ wide will be required to cover the floor of a room which is $20$meters long and $12$meters broad?

How many paving stones each measuring $2.5 \times 2 m$ are required to pave a rectangular courtyard $30 m$ long and $16.5 m$ wide?

A hall-room$39 m 10 cm$ long and $35 m 70 cm$  broad is to be paved with equal square tiles. Find the largest tile so that the tiles exactly fit.

A rectangular hall $12 m$ long and $10 m$broad, surrounded by a verandah $2 m$wide. Find the area of the verandah.

A path all around the inside of a rectangular park$37m$ by $30 m$ occupies $570 sq.m$. Find the width of the path.