15. In an equilateral triangle ABC, if AD I BC then which
of the following is true?
(a) 2AB2 = 3AD2
(b) 4AB2 = 3AD2
(c) 3AB2 = 4AD2
(d) 3AB2 = 2AD
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Answer:
No,it's not true okay hope you understand
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Let AB is a wall and AC is the ladder 15 m long which makes an angle of 60° with the ground
Height and Distance mcq solution image
∴ In ∆ABC, ∠B = 90°
Let height of wall AB = h
Then
sinθ=ABAC⇒sin60∘=h15
⇒3–√2=h15⇒h=153–√2m
∴ Height of the wall =153–√2m
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