Pythagoras is the sum of the square of two sides is equal to the square of the longest side. Then the correct option is B which is w = 9.
It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.
Your friend has locked themselves out of the house, and they need your help to get back in.
They have a 15 feet long ladder, and there is an open window 12 feet above the ground.
The value of w will be given by the Pythagoras theorem.
[tex]\rm w^2 = l^2 - k^2\\\\w^2 = 15^2 - 12^2 \\\\w^2 = 225 - 144\\\\w^2 = 81\\\\w \ = 9[/tex]
More about the right-angle triangle link is given below.
https://brainly.com/question/3770177
