Answer:
b=7m
Step-by-step explanation:
The given triangle has height 8 m, base b m, and area ,28 m².
The area of a triangle is given by:
[tex]A= \frac{1}{2} bh[/tex]
We substitute the given information to get:
[tex]28 = \frac{1}{2} \times b \times 8[/tex]
Let us simplify on the right side.
[tex]28 = 4b[/tex]
You can now divide both sides by 4
[tex] \frac{28}{4} = b[/tex]
[tex]b = 7[/tex]
Therefore the base is 7 m.
