Question

How far up the wall does the ladder reach (round your answer to the nearest tenth) enter only the numerical answer no label

Answer 1

Answer: 8.7m

Explanation:

We can use the Pythagorean theorem to solve this,

`a^2+b^2 = c^2`

We have a (5m) and c (10m) so we're looking for b.

We can rearrange the equation to find b into,

`b^2 = c^2-a^2`

`b^2=10^2-5^2`

`b^2 = 100-25`

`b^2=75`

`b=8.66025404`

Rounded to the nearest tenth is 8.7m.