A 13 feet long ladder when set against the wall of a house reaches a height of 12 feet. How far is the foot of the Ladder from the Wall?
Answers
Answered by
1
Answer:
5ft
Step-by-step explanation:
by Pythagoras, 5²+12²=13²
Answered by
1
Answer:
Therefore,the foot of the ladder is 5 m away from the wall.
Step-by-step explanation:
Length of ladder =13 m.
BC=12m,AC=13 m.
In ΔABC,
AB×AB+BC×BC=C×C
(Pythagoras theorem)
AB×AB=AC×AC−BC×BC
=√13×13−12×12
=√169−144
=√25
=5
∴AB=5 m.
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