1. Which is the measure of each exterior angle of a regular decagon? A 10° в 18° с 36 D 50°

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Q: c. 2' + 2'= %3D

A: As per our guidelines we are supposed to answer only one question. Kindly repost other question as…

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Q: 13. diameter 759

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Q: Construct an angle XYZ of 105° with YX = 93 mm and YZ = 70 mm. Measure the length of XZ.

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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.