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Warm up Use the theorems for special right triangles to find the missing side lengths in the triangles above. Chapter 4 Understanding Trigonometric Functions - Exploring Angle Measure and the unit Circle (First Quadrant) Language Objectives: We will exploring angle measure and the unit circle by do worksheet 11B Converting Between Degree Measure and Radian Measure Examples There is another way to state the size of an angle In a full circle there are 360 degrees. Each degree is split up into 60 parts, each part being 1/60 of a degree. These parts are called minutes. Each minute is split up into 60 parts, each part being 1/60 of a minute. These parts are called seconds. Exit directions Do: Work with classmate complete the Worksheet 11B. Put: In box No. 3 Finish By: 10.40 When done do: Find other proofs of the Pythagorean Theorem.