ANSWER
D. 25 feet
EXPLANATION
The height of the wall,h, the taut wire and the distance from the base of the pole to the point on the ground, formed a right triangle.
According to the Pythagoras Theorem, the sum of the length of the squares of the two shorter legs equals the square of the hypotenuse.
Let the hypotenuse ( the length of the ) taught wire be,l.
Then





I think it is - 1/2
Or it could be 1/2 I am not that sure
Someone correct me if I am wrong
But I think it is - 1/2
Answer:
h= 9.473684 in.
Step-by-step explanation:
1/2(8)(15)*2+2(15h)+8h=480
120+38h=480
38h=480-120
38h=360
h= 9.473684 in.