A room has a height of 3 m and a rectangular floor of 6.5 m by 5 m. The cost of painting per square metre of the walls of the room is 7. Find the cost of painting the four walls.
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2
Answer:
the cost of painting the four walls is 69
Answered by
1
Answer:
9.85 currency per m^2
( you haven't specified currency that needs to be used)
Step-by-step explanation:
Length = 6.5
breadth = 5
height = 3
For 4 walls we need their lateral surface area.
Lateral surface area of cuboid = 2h(l+b)
= 2 x 3 (6.5 + 5)
= 6 x 11.5
= 69cm^2
As cost of painting 1 m^2 = 7 currency
Cost of panting 69m^2 of area = 69/7 = 9.85 currency
( you haven't specified currency that needs to be used)
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