# Lesson 8“Sine”ing and “Cosine”ing ItSolidify Understanding

Rewrite each fraction in an equivalent form by performing any indicated operation and rationalizing the denominators, when appropriate.

## Set

### 10.

Triangle is an isosceles right triangle. The length of one side is given. Fill in the values for the missing sides and angles and .

### 11.

Each point on the circle marks the end of a terminal ray in standard position. Label the measure of the angle of rotation at each position of the terminal ray. Angles will be in radians. Leave in your answer. (Each section is equal.)

### 12.

Use the values in #11 to write the exact coordinates of the points on the circle. Be mindful of the numbers that are negative.

### 13.

Find the arc length, , from the point to each point around the circle. Record your answers as decimal approximations to the nearest thousandth.

Use your calculator to find the following values.
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