12. A ladder, 6.5 m long, rests against a vertical wall. If the foot of the ladder is 2.5 m
from the foot of the wall, find upto how much height does the ladder reach ?
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12. A ladder, 6.5 m long, rests against a vertical wall. If the foot of the ladder is 2.5 m
from the foot of the wall, find upto how much height does the ladder reach ?
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Answer:
the ladder and wall forms a triangle
Step-by-step explanation:
hypo.=6.5m, base= 2.5m
height=?
by using Pythagoras Therom
AC^2=AB^2+BC^2
(6.5)^2=( 2.5)^2+BC^2
42.25= 6.25+ BC^2
42.25-6.25=BC^2
36 =BC^2
BC=6