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Practice Mensuration Questions and Answers

Outer diameter of 20 cm long pipe is 25 cm. If the thickness of the metal in the pipe is 1 cm. Find the total surface area of the pipe?
Find the number of sides in a polygon in which each internal angle is 120° ?
Find the area of the octagon whose side is 20 cm?
Three solid Metallic cubes of edges 15cm, 17cm and 18cm are melted together to make a new cube. 296 cm3 of the melted material is lost due to improper hand...
The Height of a metallic hollow cylinder is 28 cm and the difference between its inner curved surface Area and outer curved Surface area is 66cm². If the ...
The side of a square is increased by 40%. Find the percentage change in its area?
The external dimensions of an open rectangular wooden box are 88 cm by 74cm by 67cm. If the wood is 2cm thick all around, find the amount of volume of wood...
Find the volume of a Prism which is based on regular octagon of side 10cm and height of the prism is 60 cm?
Find the length of the diagonal of a cube with volume 81√3 cm³?
The height of a right circular cylinder is 12m and also three times the sum of the areas of its two end faces is equal to twice the area of its curved surf...
Total surface area of Cuboid is 1875 cm ² and the Sum of its Length, breadth and height is 45cm, and then find out the sum of the squares of its length, b...
A tank 60m long, 45m broad and 18m deep is dug in a ground 2000 m long and 45m wide. By how much will the level of the field rise if earth dug out of the t...
If the angular diameter of the sun is 20, how far from the eye a coin of radius 4.95 cm be kept to hide the sun?
A cone is parallel to its base in such a way that the volume of the smaller cone is 1/2197 times of the bigger cone. Find the height of the smaller cone,...
1.5 cm of rain has fallen on a square km of length 80% of the water was stored in a tank of dimensions 160 m × 15m. Find the increase in the water level i...
Find out the circumference of a sector whose radius is 14 cm and it makes the angle of 45 degrees at the centre.
Each interior angle of a regular polygon is 140°. Then find out how many diagonals are there?
A diagonal of a rhombus is 6 cm. If its area is 24 cm, then the length of each side of the rhombus is?
A well with 20 m inside diameter is dug 10 m deep. Soil taken out of it has been evenly spread all around it to a width of 30 m to form an embankment. Find...
The length and breadth of a rectangular plot of a land are in the ratio 9:7. The owner spent Rs 8,000/- for surrounding it from all the sides at the rate o...
A room 20 m long, 16 m broad and 8m high has 2 windows of 1 m and `1(1)/(2)` m and a door of 2m `xx` `1(1)/(2)` m. Find the cost of papering ...
The height of a triangle is equal to the perimeter of a square whose diagonal is 6√2 m and the base of the same triangle is equal to the side of a sq...
The shape of an toy is a right circular cylinder with a hemisphere on bottom and a right circular cone on the top. The radius of the cylindrical part is 8 ...
Find the length of the side of a regular octagon which is formed by cutting the corner of square of side 30 cm?
A paper is in the form of rectangular piece PQRS in which PQ = 40 cm and QR = 28 cm. A semi-circular portion with QR as diameter is cut off. Find the area ...
The area of a rectangular field is 2880 m² and its length to breadth in the ratio of 5 : 1. What is the perimeter of the field.
The number of females working in the Production department forms approximately what per cent of the total number of females in the organization?
A rectangular lawn is 60 meters X 50 meters and has two roads, each 2 meters wide, in the middle of it, one parallel to its length and the other parallel t...
The ratio of the length to the breadth of a rectangular park is 3:2. If a man cycling along the boundary of the park at the speed of 18 km/hr completes one...
A circular wire enclosing the area of 9,856 cm² is bent to form a square. How much area will be enclosed by that wire?
A square is converted into a rectangle by increasing its length by 30 % and decreasing its width by 10%. Which of the following statements is true?
A closed wooden box of uniform thickness has length, breadth and height 20cms, 16cms and 12 cms respectively. If the thickness of the wooden block is 2 cms...
Two sides of the triangle are 14.8 cm and 10 cm. If height of the triangle corresponding to 14.8 cm side is 8 cm find the area? ...
Find the area of a triangle whose base is 35 cm and altitude is 40 cms.
A well with 42 m inside diameter is dug 14 m deep. Soil taken out of it has been evenly spread all around it to a width of 21 m to form an embankment. Find...
A horse is tethered to a peg with a 28 metre long repeat the corner of a 45 metre long and 25 metre wide rectangular grassfield. What area of field does th...
The length of a rectangular floor is four times its breadth. If Rs. 2160 is required to paint the floor at the rate of Rs. 15 per square metre, what is the...
The perimeter of a floor a room is 36m. What is the area of four walls of the room, if its height is 6m?
Find out the volume of a tetrahedron whose side is 6√2 cm³ ?
A rectangular reservoir of 2800 m3 capacity has length and height equal to 10 m and 40 m respectively. if 420 m3 of water is taken out of the reservoir, fi...

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