the area of four walls of a room is 77 m² the length and the breadth of the room are 7.5 and 3.5 respectively find the height of the room
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Step-by-step explanation:
Area of four walls given = 77m²
Length= 7.5 m
width= 3.5m
Area of four wall= 2h(l+b)
=77=2.h(7.5+3.5)
=77=2h(11)
=77/11=2h
=7=2h
=7/2=h
=3.5m
Therefore height of the room is 3.5m
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