1. A surveyor wants to find the distance from point A on one side of a small lake to point B on the other side of the lake. From a vantage point C, he measures two distances AC = 325 m and BC = 235 m. He also measures the angle between AC and BC to 52 degrees 40 minutes. What is the distance from A to B? 2. Two cars F and G leave simultaneously from the same point O. Car F goes east at an average speed of 60 km/h, while car G goes 45° southwest at an average speed of 80km/h. How far apart are the cars after one hour?
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.
1. A surveyor wants to find the distance from point A on one side of a small lake to point B on the
other side of the lake. From a vantage point C, he measures two distances AC = 325 m and
BC = 235 m. He also measures the
2. Two cars F and G leave simultaneously from the same point O. Car F goes east at an average speed of 60 km/h, while car G goes 45° southwest at an average speed of 80km/h. How far apart are the cars after one hour?
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