Advertisements
Advertisements
Question
Find the surface area of a cuboid whose llength = 2 m, breadth = 4 m, height = 5 m .
Advertisements
Solution
\[\text { Dimensions of the cuboid: }\]
\[\text { Length = 2 m }\]
\[\text { Breadth = 4 m }\]
\[\text { Height = 5 m } \]
\[\text { Surface area of the cuboid = 2 } \times (\text { length } \times \text { breadth + breadth } \times\text { height + length }\times \text { height })\]
\[ = 2 \times (2 \times 4 + 4 \times 5 + 2 \times 5)\]
\[ = 2 \times (8 + 20 + 10)\]
\[ = 76 m^2 \]
RELATED QUESTIONS
Water is pouring into a cubiodal reservoir at the rate of 60 litres per minute. If the volume of the reservoir is 108 m3, find the number of hours it will take to fill the reservoir.
The length of a hall is 18 m and the width 12 m. The sum of the areas of the floor and the
flat roof is equal to the sum of the areas of the four walls. Find the height of the hall.
What will happen to the volume of a cuboid if its Length is doubled, height is same and breadth is halved?
A cuboidal block of solid iron has dimensions 50 cm, 45 cm and 34 cm. How many cuboids of size 5 cm by 3 cm by 2 cm can be obtained from this block? Assume cutting causes no wastage.
A tank is 8 m long, 6 m broad and 2 m high. How much water can it contain?
The length , breadth and height of a room are 5 m, 4.5 m and 3 m, respectively. Find the volume of the air it contains.
An 8 m long cuboidal beam of wood when sliced produces four thousand 1 cm cubes and there is no wastage of wood in this process. If one edge of the beam is 0.5 m, find the third edge.
Three cubes of metal whose edges are in the ratio 3 : 4 : 5 are melted down in to a single cube whose diagonal is 12 `sqrt(3)` cm. Find the edges of three cubes.
The length, breadth, and height of a rectangular solid are in the ratio 6 : 4 :3. If the total surface area is 1728 cm2. Find its dimensions.
A room is 5m long, 2m broad and 4m high. Calculate the number of persons it can accommodate if each person needs 0.16m3 of air.
