Exterior and Interior Angles in Triangles

Exterior and Interior Angles in Triangles

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Hard

Created by

Thomas White

FREE Resource

Mrs. Yaod teaches Math 8 students about angles of triangles, focusing on interior and exterior angles. The lesson covers the sum of interior angles in a triangle, which is always 180 degrees, and the exterior angle theorem, which states that an exterior angle is equal to the sum of the two non-adjacent interior angles. The video includes examples and practice problems to reinforce these concepts.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an interior angle in a polygon?

An angle that is always 90 degrees

An angle formed by extending a side of the polygon

An angle formed inside the polygon

An angle formed outside the polygon

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a triangle has angles of 60, 60, and 60 degrees, what type of triangle is it?

Right

Equilateral

Isosceles

Scalene

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sum of the interior angles of any triangle?

360 degrees

90 degrees

180 degrees

270 degrees

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the exterior angle theorem, an exterior angle is equal to the sum of which angles?

The two adjacent interior angles

All three interior angles

None of the above

The two non-adjacent interior angles

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If one exterior angle of a triangle is 120 degrees, what is the sum of the two non-adjacent interior angles?

60 degrees

120 degrees

180 degrees

240 degrees

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a triangle, if two angles are 45 degrees each, what is the measure of the third angle?

60 degrees

45 degrees

180 degrees

90 degrees

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a triangle has angles of 30, 60, and 90 degrees, what is the measure of the exterior angle adjacent to the 30-degree angle?

60 degrees

90 degrees

120 degrees

150 degrees

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