Answer:
[tex]2(\frac{1}{2} *20*50)+2(\frac{1}{2} *20*10)[/tex]
Step-by-step explanation:
The formula for the area of a triangle is [tex]\frac{1}{2} *b*h[/tex]
The triangles that can be made is the triangle that has legs 20 and 50 and the triangle that has legs 20 and 10.
Since there are 2 of each triangles, we get:
[tex]2(\frac{1}{2} *20*50)+2(\frac{1}{2} *20*10)[/tex]
The answer that fits is the first option.
