Answer:
1164.1
Step-by-step explanation:
The wall and ground make a 90 degree angle. You don't need the 13 feet at all and that is the hypotenuse it uses the wall and ground distances so its tangent because tangent is the only trigonometric function that doesn't use the hypotenuse.
I can’t see 9 and 10 but the answer to 17 would be 25 yards farther
9,720 the formula is n-2 *180 n is the number of sides so 56-2*180