### Brain Teasers

# Guttering

Fun: (2.3)
Difficulty: (1.44)
Puzzle ID: #8669

Submitted By: glennyboy02 Corrected By: grilledcheese

Submitted By: glennyboy02 Corrected By: grilledcheese

Glenn needs to repair the guttering on his house. His house is 7.2 metres high, and he places the ladder 1.8 metres from the base of the wall of the house. The ladder stretches 1 metre over the roof. What is the length of the ladder, rounded off to two decimal places?

### Hint

Try drawing a diagram.### Answer

Use the Pythagorean Theorem.where L = ladder length

L = (square root (7.2m squared + 1.8 m squared)) + 1m

L = (square root (55.08m)) + 1m

L = 7.42m + 1m

Therefore, the length of the ladder is approximately 8.42 metres.

Hide Hint Show Hint Hide Answer Show Answer

## What Next?

View a Similar Brain Teaser...

If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.

### Solve a Puzzle

Comments hidden to avoid spoilers.

## Follow Braingle!