Data:
B (Larger base) = 28 m
b (Minor base) = 18 m
h (height) = ?
A (area) = 475 m²
Formula:
[tex]A = \frac{(B+b)*h}{2} [/tex]
Substitute:
[tex]475 = \frac{(28+18)*h}{2} [/tex]
[tex]475 = \frac{\diagup\!\!\!\!\!46^{23}*h}{\diagup\!\!\!\!2^1}\:\:\to\:\:\:475 = 23*h\:\:or\:\:\boxed{\boxed{23h = 475}}[/tex]
Answer:
[tex]\textcircled{ A } 23h = 475[/tex]
