Question

Hey guys please help ​

Answer 1

Answer:

$7.98 \:m$

Step-by-step explanation:

Area of a triangle is base times height divided by 2.

$A= \frac{bh}{2}$

$69.6= \frac{b \times 17.45}{2}$

$69.6 \times 2= b \times 17.45$

$139.2=b \times 17.45$

$\frac{17.45b}{17.45}=\frac{139.2}{17.45}$

$b=\frac{2784}{349}$

$b=7.97707$

The appropriate unit is meters.