A 18-ft ladder leans against a building so that the angle between the ground and the ladder is 81°. How high does the ladder reach on the building? ft

Q: Each vane of a diffuser is bent at an angle of 30°. Each vane is 1 centimeterlong. How far will the…

A: Given data:- The given vane of a diffuser is bent at an angle of 30°.

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.