Question

A ladder 20m long is leaning against a vertical wall, it makes an angke of 30° with the ground. How high on the wall does the ladder reach? ​

Answer 1

Answer: This question comes from the chapter “Height and distance”

Let the height at which ladder is leaning be h

Sin30°=h/20

1/2=h/20

h=10

h=10 metres

Ans-The ladder is at 10 metres height on the wall