as you already know, the area of a rectangle is just length*width, so is just the product of those two.

Answer:
The first triangle is larger
Step-by-step explanation:
(1/2)(8)(10)=40
(1/2)(5)(13)=32.5
Shii ion even know maybe A
Subtract the y values to one side then the numbers to the other so as x values to one side then the numbers to the other