Question

A ladder of length 50m is leaning against a wall making an angle Z with the ground and cotA=4÷3 .Find the height of the point on the wall at which the ladder is touching.

Answer 1

Answer:

The height of point is 40m from the ground...

Step-by-step explanation:

cotA= 4/4

P/B=4/3

Therefore, the ratio between the base and perpendicular is 3/4.

Consider,

B = 3x

P = 4x

By applying pythagoras theorem,

H = 5x

50 = 5x    (Given)

x = 10

By this we get,

P = 40m

B = 30m

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Hope it helps...