1.In a building there are 4 cylindrical pillars. T
he radius of each pillar is 21 cm and
height is 5 m. Find the curved surface area of four
pillars.
2.The parallel sides of a trapezium are in the rat io 2: 3 and the area of the trapezium is 125 cm2. The distance between the parallel lines is 10 cm. Find the length of the parallel sides of the trapezium.
3. A rectangular piece of iron sheet is 44 m long and 20 m broad. It is rolled along its length to form a cylinder. Find the volume of the c ylinder so formed.
4. A rectangle piece of metal sheet 11 m x 4 m is folded without overlapping to make a cylinder of height 4 m. Find the volume of the cyli nder.
5.Find the area of a rhombus whose side is 5 cm an d its altitude is 4 cm. If one of its diagonal is 8 cm long, find the length of the other diagonal.
6.Radha bought a rectangular plot of dimensions 12 0 m x 80 m and Radhika bought a square field of dimension 95 m. Who bought plot of greater area and by how much?
7.A pool is 20 m long, 15 m broad and 4 m deep. F ind the cost of cementing its floor and its walls at the rate of Rs. 12 per square metre.
8. A tin is in a cylindrical shape whose base has a diameter of 14 cm and height 20 cm. A label is placed around the surface of the container . If the label is placed 2 cm from top and bottom, what is the area o f the label?
9. A cylindrical container of radius 28 cm contain s sufficient water to submerge a rectangular solid of dimensions 32 cm × 22 cm × 14 cm. Find the rise in the level of water, when the solid is completely submerged.
10. A cylindrical tube, open at both ends is made o f metal. The internal diameter of the tube is 10.4 cm and its length is 25 cm. The thickn ess of the metal is 8 mm everywhere. Calculate the volume of the metal in th e cylinder.
11. A rectangular paper of width 7 cm is rolled alon g its width and a cylinder of radius 20 cm is formed. Find the volume of the cylinder.
12.A godown is in the form of a cuboid of measures 60 m × 40 m × 20 m. How many cuboidal boxes can be stored in it if the volume of one box 0.8 m 3 ?
12.he area of a trapezium is 384 cm 2 . Its parallel sides are in the ratio 3:5 and the distance between them is 12 c m. Find the length of each parallel side.
2.The parallel sides of a trapezium are in the rat io 2: 3 and the area of the trapezium is 125 cm2. The distance between the parallel lines is 10 cm. Find the length of the parallel sides of the trapezium.
3. A rectangular piece of iron sheet is 44 m long and 20 m broad. It is rolled along its length to form a cylinder. Find the volume of the c ylinder so formed.
4. A rectangle piece of metal sheet 11 m x 4 m is folded without overlapping to make a cylinder of height 4 m. Find the volume of the cyli nder.
5.Find the area of a rhombus whose side is 5 cm an d its altitude is 4 cm. If one of its diagonal is 8 cm long, find the length of the other diagonal.
6.Radha bought a rectangular plot of dimensions 12 0 m x 80 m and Radhika bought a square field of dimension 95 m. Who bought plot of greater area and by how much?
7.A pool is 20 m long, 15 m broad and 4 m deep. F ind the cost of cementing its floor and its walls at the rate of Rs. 12 per square metre.
8. A tin is in a cylindrical shape whose base has a diameter of 14 cm and height 20 cm. A label is placed around the surface of the container . If the label is placed 2 cm from top and bottom, what is the area o f the label?
9. A cylindrical container of radius 28 cm contain s sufficient water to submerge a rectangular solid of dimensions 32 cm × 22 cm × 14 cm. Find the rise in the level of water, when the solid is completely submerged.
10. A cylindrical tube, open at both ends is made o f metal. The internal diameter of the tube is 10.4 cm and its length is 25 cm. The thickn ess of the metal is 8 mm everywhere. Calculate the volume of the metal in th e cylinder.
11. A rectangular paper of width 7 cm is rolled alon g its width and a cylinder of radius 20 cm is formed. Find the volume of the cylinder.
12.A godown is in the form of a cuboid of measures 60 m × 40 m × 20 m. How many cuboidal boxes can be stored in it if the volume of one box 0.8 m 3 ?
12.he area of a trapezium is 384 cm 2 . Its parallel sides are in the ratio 3:5 and the distance between them is 12 c m. Find the length of each parallel side.
No comments:
Post a Comment