Find the height of the classroom ?
Algebra
Level
pending
Given the floor area of a classroom as 60 m by 80 m, and the space diagonal of the classroom is 125 m.
65
100
80
75
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1 solution
Using the formula of the diagnol of a cuboid.
80×80 + 60×60 + H×H = 125×125
6400 + 3600 + H×H = 15625
H×H = 5625
Square root one both the sides
H = 75.