20
The ladder forms the hypotenuse of a right angled triangle whose base is 5 feet. The height, therefore is
sqrt(152 - 52) = sqrt(225 - 25) = sqrt(200) = 14.142 feet
Answer your self dont know
17
Its pythagoras: 102 - 52 = vertical height2. So 100-25 = vertical height2. Then the square root of 75 must = vertical height. Which makes the top of the ladder 8.66 feet (8ft 8 inches) from the ground.
x^2=(x-4)^2+y^2 height up the wall = y = (x^2-(x-4)^2)^1/2 so if the length of the ladder is 10 feet Y= (100-36)^1/2 = 8
14
13 feet
30 feet. And you don't have to round it to the nearest foot. It's exactly 30 feet.
Answer your self dont know
56
he should bud the ladder so it wouldn't be able to reach
20
17
It is: 24 feet by using Pythagoras' theorem
115
18
A. 11 feet B. 13 C. 12 D. 14.
32