The area of Triangle JKL will be found using the following formula:-
[tex]A = \frac{ab}{2} [/tex]
Now lets substitute and then solve:-
[tex]A = \frac{4*13}{2} [/tex]
Lets solve:-
4 × 13 = 52
52 ÷ 2 = 26
a = 26 ft²
So, the area for right triangle JKL is a = 26 ft² (B).
Hope I helped ya!!