Question

Hii❗ guys help me with this question

Q.A 25 m long ladder is placed against a vertical wall such that the foot of the ladder is 7m from the feet of the wall.If the top of the ladder slides down by 4m,how much distance will the foot of the ladder slide ??With figure.

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Answer 1

hyp= length of ladder
base= 7m
height=?
we know that,
hyp
${hyp }^{2} = {base }^{2} + {height}^{2}$
${25 }^{2} = {7}^{2} + h {}^{2}$
$625 = 49 + h ^{2}$