Triangle Sum Theorem and Exterior Angle Theorem

Triangle Sum Theorem and Exterior Angle Theorem

Assessment

Flashcard

Mathematics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the Triangle Sum Theorem?

Back

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

2.

FLASHCARD QUESTION

Front

If one angle of a triangle measures 50 degrees and another measures 60 degrees, what is the measure of the third angle?

Back

70 degrees (180 - 50 - 60 = 70).

3.

FLASHCARD QUESTION

Front

What is an exterior angle of a triangle?

Back

An exterior angle is formed by one side of a triangle and the extension of an adjacent side.

4.

FLASHCARD QUESTION

Front

According to the Exterior Angle Theorem, how is an exterior angle related to the interior angles?

Back

The exterior angle is equal to the sum of the two remote interior angles.

5.

FLASHCARD QUESTION

Front

If an exterior angle measures 120 degrees, what is the sum of the two remote interior angles?

Back

120 degrees.

6.

FLASHCARD QUESTION

Front

What is a remote interior angle?

Back

A remote interior angle is an interior angle of a triangle that is not adjacent to a given exterior angle.

7.

FLASHCARD QUESTION

Front

If angle A is 40 degrees and angle B is 60 degrees in triangle ABC, what is angle C?

Back

80 degrees (180 - 40 - 60 = 80).

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