Maths-
SAT
Easy
Question
The figure above is the floor plan drawn by an architect for a small concert hall. The stage has depth 8 meters (m) and two walls each of length 10 m. If the seating portion of the hall has an area of 180 square meters, what is the value of x ?
The correct answer is: 15
From 
Similarly BD is also 6m
The length of BD = 6 + 6 = 12
Area of seating portion is 180 m2
180 = x 
2
x = 15
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Maths-SAT
