the triangle shown below has an area of 10 units.
find the missing length

Answer:
5
Step-by-step explanation:
We know the formula for area (for triangles) is: 1/2bh.
We can write the equation 10=1/2(4)(h). 1/2*4 = 2, so 10=2h. Divide 2 from both sides, and we get 5.