A ladder 17 m long is placed at a distance of 15 m away from the wall to reach
a window. Find the height of the window. If the ladder is kept at a distance of
8 m away from the wall, it reaches the roof. What is the height of the roof
above the ground?
Answers
Answered by
1
Answer:
Step-by-step explanation:
the main thing is why is the leader 17 meter long telll me
Answered by
3
Step-by-step explanation:
The ladder will form a right angled triangle with the wall with hypotenuse 17m and one side 15m. We have to find the third side
Use Pythagoras theorem
\begin{gathered}17^{2}= 15^{2}+x^{2} \\ x^{2} = 17^{2} - 15^{2} = 289-225 = 64 \\ x = \sqrt{64} = 8 m\end{gathered}
17
2
=15
2
+x
2
x
2
=17
2
−15
2
=289−225=64
x=
64
=8m
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