Question

Rob is putting up new siding on his house, but his 6 foot ladder is not tall enough to reach the top fo hte house which is 20 feet off
the ground. Rob's wife doesn't want him trampling through the landscape which goes 8 feet from the side of the house. How tall
of a ladder will Rob need to finish the job?

Answer 1

Answer:

20-6=14

Step-by-step explanation:

I hope this is correct! <3

Answer 2

Answered using the Pythagorean theorem:

The height of the house is 20feet and the width of the landscape is 8feet. The task is to find the hypotenuse (length of the ladder to reach the roof but not go through the landscape).

The formula to finding the hypotenuse is: a^2 + b^2 = c^2.

20^2 + 8^2 = 464 (400 + 64)
The square root of 464 is equal to ~21.54066.

This means the ladder will need to be around 21.54066 feet, or something around that depending on where you round it to.