Unit 1, Lesson 5

Unknown Angles

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Integrated Math 2

Practice

Problem 1

a. Find the measure of each unknown angle.

b. Name the longest side in triangle . Explain your reasoning.

Practice

Problem 2

Find the unknown angles and then list the sides of triangle in order from least to greatest.

Problem 3

List reasonable angle measures for triangle .

Problem 4

from an earlier course

Are triangles and congruent? Explain your reasoning.

Problem 5

ForLesson 4: Big Angles, Long Sides. Small Angles, Short Sides.

Which side is the shortest in triangle ?
Explain your reasoning.

Problem 6

ForLesson 4: Big Angles, Long Sides. Small Angles, Short Sides.

In triangle , , , and angle is obtuse. What does the Triangle Inequality tell you about possible lengths for ? What do you know about the length of from the size of its opposite angle? Combine what you know about the length of into an inequality of the form .

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Unknown Angles

Practice

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6