Question

You lean a ladder 6.7 meters long against the wall. It makes an angle of 63° with the level ground. How high up is the top of the ladder?

Answer 1

I found: `6m`

Explanation:

Consider the diagram:

with:
`h=6.7m`
`alpha=63^@`

We can find `l` using trigonometry:
`l=hsin(alpha)`
`l=6.7sin(63^@)=5.969~~6m`