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## Trigonometric Functions

SOH-CAH-TOA! Have you heard the call of the trig function? Use them to navigate the trickier sides (and angles) of geometric shapes.

#### Challenge Quizzes

Convert the angle $$\frac{4\pi}{3}$$ radians into degrees.

Jacky drew an angle of radian measure $$\frac{ 5\pi }{3}$$. How many degrees is that equivalent to?

The hands of a clock show 7:10. What is the measure, in radians, of the smaller angle formed between the hour and minute hands?

Two connected gears are rotating. The smaller gear has a radius of $$r_1 = 6 \text{ cm}$$ and the larger gear's radius is $$r_2 = 42 \text{ cm}.$$ What is the angle in radian through which the larger gear has rotated when the smaller gear has made one complete rotation?