Answer:
Explanation:
I believe the only way to solve this is by Heron's Formula.
Add up all the sides and divide by 2 to get the semi-perimeter:
113+100+86 = 299
299/2 = 149.5
Now fill in the rest, which looks like this:
![√(s(s-a)(s-b)(s-c))](https://img.qammunity.org/2021/formulas/mathematics/high-school/yyg3tckl91nb3fe72urxsofgegkv9r8mlw.png)
where s is your semiperimeter value, a is the length of one side, b the length of another side, and c the length of the third side:
![√(149.5(149.5-113)(149.5-100)(149.5-86))](https://img.qammunity.org/2021/formulas/mathematics/middle-school/kckxipxnedap629wlf5p85jk1v4gk4azuw.png)
which simplifies to
![√(149.5(36.5)(49.5)(63.5))](https://img.qammunity.org/2021/formulas/mathematics/middle-school/8zvf224g6o2495r54qwz4pielh2omz4lto.png)
which simplifies further to
![√(17151929.44)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/lfj51g8c5mfc3rymfcv27mucpgia6luhlw.png)
which, on your calculator, is 4141.49 meters squared (that's rounded to the nearest hundredth).