13 feet
30 feet. And you don't have to round it to the nearest foot. It's exactly 30 feet.
If the wall is straight and the ground level then this is an outline of a right angle-triangle. If the top of the ladder makes an angle of 530 with the wall then the bottom of the ladder must make 370 to the ground. Use the sine ratio to find the length of the ladder (which will be the hypotenuse) sin = opp/hyp rearranged to hyp = opp/sin hyp = 15/sin370 = 24.92460212 feet So the length of the ladder is 25 feet correct to the nearest foot.
Well, using a^2 + b^2 = c^2, where a and b are the legs and c is the hypotenuse, you need to square 39 and 36. Then your equation should look like a^2 +1296 = 1521, then solve for a^2, getting the variable by itself, so you have a^2 = 225. Then take the square root of both sides leaving you with a= 15. So, the ladder must be placed 15 feet from the base of the house.
10.9 [11]
Hypotenuse = 20/sin580 = 23.58356807 Length of ladder: rounded to 23.584 feet
62+82=36+64=100 and the squared route of 100 is 10
56
It is: 24 feet by using Pythagoras' theorem
20
30 feet. And you don't have to round it to the nearest foot. It's exactly 30 feet.
Answer your self dont know
A. 11 feet B. 13 C. 12 D. 14.
32
115
10,000 m
17