c) A ladder rests against a wall of height 8 ft. If the foot of the ladder is 6
ft away from the foot of the all, find the length of the ladder.
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Step-by-step explanation:
Man climb
3
2
of the ladder.
So, in △ADE & △ABC
∠A=∠A (common)
∠ADE=∠ABC (corresponding Angle)
∠AED=∠ACB (corresponding Angle)
△ADE∼△ABC
⟹
AB
AD
=
BC
DE
⟹
5
3
=
6
DE
⟹DE=
5
18
=3.6ft
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