Can you help me Two window washers, Colleen and Dustin, lean a ladder against the side of a building so that Colleen can wash a window while Dustin holds the ladder. The top of the ladder reaches the window, which is 12 feet off the ground. The base of the ladder is 9 feet away from the building. How long is the ladder?

You have to use the Pythagorean theorem

The ladder is 15 feet long

Step-by-step explanation:

Use Pythagorean theorem

SO the base is 9ft so that is a

THe height is 12 which is B

We just need hypotenuse since we got 2 legs already and cause it said “how long”.

so put it in a^2+b^2=c^2

9^2+12^2=c^2

81+144=c^2

225=c^2

now solve for c

√225=15

SO the ladder is 15 feet long

rectangle that is ther answer you

step-by-step explanation:

5x+10 is the correct one

hope this