The area of floor and four walls of a room is 25 meter square and 40 meter square respectively.Find the total surface area of the room?
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Here is your answer...
Let length, breath and height be L,B and H respectively
Given that,
Area of floor of room = 25 m²
L × B = 25 m² ...........(1)
And
Area of four walls = 40 m²
2(LH + BH) = 40 m²
2BH + 2HL = 40 m² ...........(2)
Now,
Total surface area of the room = 2LB+2BH+2HL
= 2×25 + 40 .....[ from (1) and (2) ]
= 50 + 40
= 90 m²
Here is your answer...
Let length, breath and height be L,B and H respectively
Given that,
Area of floor of room = 25 m²
L × B = 25 m² ...........(1)
And
Area of four walls = 40 m²
2(LH + BH) = 40 m²
2BH + 2HL = 40 m² ...........(2)
Now,
Total surface area of the room = 2LB+2BH+2HL
= 2×25 + 40 .....[ from (1) and (2) ]
= 50 + 40
= 90 m²
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