The diagram below shows the bonnet PQ of a car being open and held by a metal rod PR. The distance QR represents the distance from the base of the bonnet to the front of the car. If PQ = 101cm, QR = 98 cm and angle PQR = 57°, determine the length of the metal 2. rod PR to the nearest cm. Q (57° 98 cm [8] 101 cm

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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.