1.A wire is bent to form a square of side 22 cm. If the wire is rebent to
form a circle, its radius is
2.Area of a rectangle and the area of a circle are equal. If the dimensions of the rectangle are 14cm × 11 cm, then radius of the circle is 3.Length of tape required to cover the edges of a semicircular disc of radius 10 cm is
3.A wall of a room is of dimensions 5 m × 4 m. It has a window of dimensions 1.5 m × 1m and a door of dimensions 2.25 m × 1m. Find the area of the wall which is to be painted.
4.Area of an isosceles triangle is 48 cm2. If the altitudes corresponding to the base of the triangle is 8 cm, find the perimeter of the triangle.
5.A circle of radius 5 cm is cut from circle of radius 6 cm find the remaining area
6.A circular park has a diameter of 66 cm , if there is a 4 cm path all around it find the area of path
7.The area of a square and a rectangle are equal. If the side of the square is
40 cm and the breadth of the rectangle is 25 cm, find the length of the rectangle. Also, find the perimeter of the rectangle.
8.The circumference of a circle is 31.4 cm. Find the radius and the area of the circle?
9.How many times a wheel of radius 28 cm must rotate to go 352 m?
10.Two cross roads, each of width 5 m, run at right angles through the centre of a rectangular park of length 70 m and breadth 45 m and parallel to its sides. Find the area of the roads. Also find the cost of constructing the roads at the rate of Rs 105 per m2
11.A path 1 m wide is built along the border and inside a square garden of side 30 m. Find:
(i) the area of the path
(ii)the cost of planting grass in the remaining portion of the garden at the rate of Rs 40 per m2.
12.A picture is painted on a cardboard 8 cm long and 5 cm wide such that there is a margin of 1.5 cm along each of its sides. Find the total area of the margin.
13.A room is 4.5 m long and 4 m wide. The floor of the room is to be covered with tiles of size 15 cm by 10 cm. Find the cost of covering the floor with tiles at the rate of ` 4.50 per tile.
14.Find the total cost of wooden fencing around a circular garden of diameter 28 m, if 1m of fencing costs ` 300.
15.How much distance, in metres, a wheel of 25 cm radius will cover if it rotates 350 times?
2.Area of a rectangle and the area of a circle are equal. If the dimensions of the rectangle are 14cm × 11 cm, then radius of the circle is 3.Length of tape required to cover the edges of a semicircular disc of radius 10 cm is
3.A wall of a room is of dimensions 5 m × 4 m. It has a window of dimensions 1.5 m × 1m and a door of dimensions 2.25 m × 1m. Find the area of the wall which is to be painted.
4.Area of an isosceles triangle is 48 cm2. If the altitudes corresponding to the base of the triangle is 8 cm, find the perimeter of the triangle.
5.A circle of radius 5 cm is cut from circle of radius 6 cm find the remaining area
6.A circular park has a diameter of 66 cm , if there is a 4 cm path all around it find the area of path
7.The area of a square and a rectangle are equal. If the side of the square is
40 cm and the breadth of the rectangle is 25 cm, find the length of the rectangle. Also, find the perimeter of the rectangle.
8.The circumference of a circle is 31.4 cm. Find the radius and the area of the circle?
9.How many times a wheel of radius 28 cm must rotate to go 352 m?
10.Two cross roads, each of width 5 m, run at right angles through the centre of a rectangular park of length 70 m and breadth 45 m and parallel to its sides. Find the area of the roads. Also find the cost of constructing the roads at the rate of Rs 105 per m2
11.A path 1 m wide is built along the border and inside a square garden of side 30 m. Find:
(i) the area of the path
(ii)the cost of planting grass in the remaining portion of the garden at the rate of Rs 40 per m2.
12.A picture is painted on a cardboard 8 cm long and 5 cm wide such that there is a margin of 1.5 cm along each of its sides. Find the total area of the margin.
13.A room is 4.5 m long and 4 m wide. The floor of the room is to be covered with tiles of size 15 cm by 10 cm. Find the cost of covering the floor with tiles at the rate of ` 4.50 per tile.
14.Find the total cost of wooden fencing around a circular garden of diameter 28 m, if 1m of fencing costs ` 300.
15.How much distance, in metres, a wheel of 25 cm radius will cover if it rotates 350 times?
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