How do you do this if you don’t know don’t give that answer to me because this is a grade

The equation to find the area of a triangle is 1/2bh or 1/2 base*height.
Let’s just insert the known values.
The triangle has a base of 14 and a height of 8.2, so our equation would look like:
1/2(14)(8.2)
Now solve.
7*8.2
57.4
The triangle has an area of 57.4 mm.
Hope this helps!