please solve 12th question answered first i will mark as brainlest
Answers
12.
Given that Area of wall is 108m^2
=> l * h = 108
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Given that Area of north wall is 135 m^2.
= > b * h = 135
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Given that Area of floor is 180 m^2
= > l * b = 180
= > b = (180/l)
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Substitute (3) in (2), we get
= > (180/l) * h = 135
= > (180h/l) = 135
= > 180h = 135l
=> l = (180h/135) ------- (1)
Substitute (4) in (1), we get
= > l * h = 108
= > (180h/135) * h = 108
= > (180h^2) = 108 * 135
= > h^2 = 81
= > h = 9m.
Therefore, the height of the auditorium is 9m.
Hope this helps!