please help :)))

Question

A 23-ft ladder leans against a building so that the angle between the ground and the ladder is 80 degrees. The height of the ladder reaches up the side of the building is ( ) feet. Round to one decimal place

Answer 1

Well if you draw a picture you have a right triangle

Hypotenuse = ladder

So if h is required height

h/23 = sin 80°

So h = 23 sin 80°