question- what is the missing length
(just click photo)

Answer:
16.7
Step-by-step explanation:
The formula to find the area of a triangle is
[tex]a=\frac{base * height}{2}[/tex]
using this formula, plug in the area and the base
[tex]116.9=\frac{14b}{2}[/tex]
you can either multiply by 2 on both sides are divide 14b/2 which is 7b
116.9 *2 = 233.8
divide 233.8 by 14 to get 16.7
or divide 116.9 by 7 to get 6.7