Question

.
From right AOBA, we have
AB
15
= sin = .:: tan 0 =
OA
17
15
15
LE
> sin
8
17
h 15
85 17
h=

A ladder 15 m long just reaches the top of a vertical wall. If the ladder
makes an angle of 60° with the wall, find the height of the wall.
​

Answer 1

Answer:

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

Answer 2

$\huge\bold{\underline{\sf{\pink{Answer:-}}}}$

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