Use the formula A = bh. $A = 307 \mathrm {~m} ^ { 2 }$ , $h = 19.3$ m; find b.
A) $b = 11.9 \mathrm {~m}$
B) $b = 16.9 \mathrm {~m}$
C) $b = 15.9 \mathrm {~m}$
D) $b = 134 \mathrm {~m}$
E) $b = 15.5 \mathrm {~m}$

Question

Quizplus · Accepted Answer

We know that $A = bh$ and we are given $A$ and $h$, so we can plug in those values and solve for $b$:

$$307 = b(19.3) \Rightarrow b = \frac{307}{19.3} \approx 15.9$$

Therefore, the answer is choice C, with $b = 15.9$ m.

Use the Formula a = Bh A=307 m2A = 307 \mathrm {~m} ^ { 2 }A=307 m2

Use the Formula a = Bh $A = 307 \mathrm {~m} ^ { 2 }$