Answer:
1. B
2. A=15, B=?, C=22
3. 16.09
Step-by-step explanation:
1. You can find the length below the ladder to the wall(B) with PT
2. Imagine this as a right triangle, the ladder is slanted so that would make it the hypothenuse and the wall is the bottom of the triangle, and the area between the base of the ladder to the wall is the last part of a triangle.
3. a^2+b^2=c^2, so weplug in a and c to get 259 + b^2 = 484, subtract 259 from 484, b^2=259, finally take the square root of both sides and round to the hundreths place. b=16.09.
