Question

a fire engine standing near a building, extends it's ladder to a length of 10 metres to reach a certain window in the building. what is the height of the window from the ground?

Answer 1

The answer is 11m.

Height from ground = 3 +$\sqrt{10^{2} - 6^{2}$

= 3 + $\sqrt{64}$

= 3+ 8

= 11m

Hope i helped

Add 3 to obtain distance from ground as 3m is mentioned as height of truck