A ladder 10 ft long leans against a vertical wall. If the bottom of the ladder slides away from the base of the wall at aspeed of 2 fts, how fast is the angle between the ladder andthe wall changing when the bottom of the ladder is 6 ftfrom the base of the wall?

Q: You are standing 12 feet away from a balloon launcher that will release a balloon vertically up into…

A:

Q: One of the sides of a parallelogram is increasing at a rate of 10cm / s and one of the adjacent ones…

A: According to the given information, first draw the parallelogram.

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.