A ladder of height 9m is placed against a wall making a right angle triangle PQR which is right angled at Q ,if the distance between the wall and ladder is 7m then find: (3) a)height of the wall b) R c)tan .
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Answer:
base distance = 1.5m
hypotenuse distance = 3.9m
height=
(3.9
2
−1.5
2
)
=
(15.21−2.25)
=
12.96
=3.6cm
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