A ladder , 13 m long , is learning against a wall of height 12m. How far is the lower end of the ladder from the base of the wall ? Someone please answer
Answers
Answered by
2
Answer:
H=13m
perpendicular=12m
base=?
by PGT
13^2=base^2+12^2
base^2=13^2_12^2
base^2=169_144
base^2=25
base=√25
base=5m
Answered by
3
Answer:
Length of ladder =13 m.
BC=12m,AC=13 m.
In ΔABC,
AB
2
+BC
2
=C
2
(Pythagoras theorem)
AB
2
=AC
2
−BC
2
=13
2
−12
2
=169−144
=25
∴AB=5 m.
∴ The distance of the foot of the ladder from the base of the wall =5 m
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