A ladder 15mm long just reaches the top of a vertical wall . If the ladder makes an 60deggre angle with the wall find the height of the wall
Answers
Answered by
2
Step-by-step explanation:
Let the length of the ladder be =15m(hypotenuse)
The angle between the ladder and the wall ∠BCA=60
∘
Angle between ladder and the ground ∠CAB=90
∘
−60
∘
=30
∘
Height of the wall =BC
sin30
∘
=
15
BC
⇒
2
1
=
15
BC
⇒BC=
2
15
=7.5m
Attachments:
Similar questions