1A rectangular garden is 120 metres long and 110 metres wide, and a volleyball court 18 metres long and 9 metres wide has been made in the middle of it. What is the area of the garden outside the court?
2A rectangular field is 125 metres long and 100 metres wide, and a square fish pond of side 50 metres has been dug in the middle of it. Find the area of the field outside the pond.
3How many boards of 1 square foot each can be stuck on a wall 9 feet long and 7 feet wide without any of them overlapping?
4A square field has a perimeter of 200 feet. (i) How long is one side? (ii) Find the area of the field.
5A rectangular room is 15 ft long and has a perimeter of 54 ft. (i) How wide is the room? (ii) Find its area.
6A rectangular room is twice as long as it is wide. If its perimeter is 60 ft, (i) what are its length and width, and (ii) how many square feet of carpet are needed to cover its floor?
7Find the area of a circle whose radius is 3 cm. ( \( \pi = 3.14 \) )
8Find the area of a circle whose circumference is 34.54 cm. ( \( \pi = 3.14 \) )
9Find the radius of a circle whose area is 154 square centimetres. ( \( \pi = \frac{22}{7} \) )
10A cow is tied to a peg in a grassy field by a rope 7 ft long. What is the largest area of grass it can reach?
11The base of a cylindrical tank has an area of 154 square feet. Find the radius and the circumference of that base. ( \( \pi = \frac{22}{7} \) )
12Sharmila drew a circle of radius 5 cm and Prakash drew one of radius 7 cm. Whose circle has the greater area, and by how much? ( \( \pi = 3.14 \) )
13A circular pond has an area of 616 square metres. ( \( \pi = \frac{22}{7} \) ) (a) What is its radius? (b) How many metres of wire netting are needed to fence right round it? (c) At Rs. 250 per metre, what is the total cost?
14A runner completes 3520 metres by going four times round a circular track. (a) What is the distance round the track? (b) What is its diameter? (c) What area does the track enclose? ( \( \pi = \frac{22}{7} \) )
15A trapezium has parallel sides of 12 cm and 8 cm with a perpendicular distance of 5 cm between them. Find its area.
16A triangle has an area of 84 square centimetres and a base of 14 cm. What is its height?
17One diagonal of a rhombus is 10 cm and its area is 60 square centimetres. How long is the other diagonal?
18A round plate of radius 7 cm is placed in the middle of a square table of side 20 cm. What area of the table is left uncovered? ( \( \pi = \frac{22}{7} \) )