Triangle Angle Sum Theorem

Triangle Angle Sum Theorem

Assessment

Flashcard

Mathematics

9th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the Triangle Angle Sum Theorem?

Back

The Triangle Angle Sum Theorem states that the sum of the interior angles of a triangle is always 180°.

2.

FLASHCARD QUESTION

Front

If one angle of a triangle measures 90°, what can you say about the other two angles?

Back

The other two angles must be acute (less than 90°) and their sum must equal 90°.

3.

FLASHCARD QUESTION

Front

Solve for x: x + 45° + 55° = 180°

Back

x = 80°.

4.

FLASHCARD QUESTION

Front

What is the measure of the third angle in a triangle if the other two angles measure 50° and 60°?

Back

The third angle measures 70°.

5.

FLASHCARD QUESTION

Front

Can a triangle have one angle measuring 120°?

Back

No, a triangle cannot have an angle measuring 120° because the sum of the other two angles would be less than 60°, which is not possible.

6.

FLASHCARD QUESTION

Front

If a triangle has angles measuring 30°, 60°, and x°, what is the value of x?

Back

x = 90°.

7.

FLASHCARD QUESTION

Front

What is the maximum possible measure of an angle in a triangle?

Back

The maximum possible measure of an angle in a triangle is less than 180°.

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