OK, Nick....you can do this one
We have 1/2 the area of a 8 by 6 rectangle....what is its area ????
And we have a triangle with a base od 10 and a height of 8......what is its area ???
Add these together.....
Figure the area of the triangle again
What do we need to do after multiplying 10 x 8 ???? [ hint : (1/2) base * height ]