Problem 3 Instructions: Find MZDCB. 70 B 231° Remember this is a two step problem, You mind find the mBD first. m BD= 360-231° mBD= 129 Now you can use the difference of the two arcs divided by two to find mDCB. MZDCB=

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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.