Answer:
we need more details :(
Step-by-step explanation:
$256.75
Add $178 + $98.25= $276.25
Then $276.25 - $19.50 = $256.75
The equation for the area of a triangle is 1/2 x base x height.
Plug in the values that you already have with h being the missing height value:
30= 1/2 x 12 x h
Simplify:
30=6h
Solve:
30/6=h
5=h
The heoght of the triangle is 5 units