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  5. Exploring Parallel Lines And Triangle Angles
Exploring Parallel Lines and Triangle Angles

Exploring Parallel Lines and Triangle Angles

Assessment

Interactive Video

•

Mathematics

•

6th - 10th Grade

•

Practice Problem

•

Hard

•
CCSS
8.G.A.5, 4.G.A.2, 4.G.A.1

Standards-aligned

Created by

Amelia Wright

FREE Resource

Standards-aligned

CCSS.8.G.A.5
,
CCSS.4.G.A.2
,
CCSS.4.G.A.1
The video tutorial covers the Triangle Sum Theorem, starting with classifying angles as acute, right, or obtuse. It includes solving equations to find missing angles and a hands-on activity to demonstrate that the sum of angles in a triangle is always 180 degrees. The tutorial also explains how to classify triangles by their angles and sides, and explores exterior angles and related theorems.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you determine if an angle is obtuse using a piece of paper?

If the angle is exactly 90 degrees

If the angle is larger than the corner of the paper

If the angle is equal to the corner of the paper

If the angle is smaller than the corner of the paper

Tags

CCSS.4.G.A.1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of x in the equation 30 + 90 + x = 180?

120

90

60

30

Tags

CCSS.8.G.A.5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you notice when you put the three angles of a triangle together after cutting them out?

They form a right angle

They form a square

They form a straight line

They form a circle

Tags

CCSS.8.G.A.5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the Triangle Sum Theorem, what is the sum of the measures of the angles in any triangle?

90 degrees

270 degrees

360 degrees

180 degrees

Tags

CCSS.8.G.A.5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a triangle with angles 35°, 65°, and x, what is the measure of angle x?

90°

100°

80°

70°

Tags

CCSS.8.G.A.5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of triangle has all three angles less than 90 degrees?

Scalene triangle

Right triangle

Acute triangle

Obtuse triangle

Tags

CCSS.4.G.A.2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of triangle has at least two sides congruent?

Scalene triangle

Isosceles triangle

Equilateral triangle

Right triangle

Tags

CCSS.4.G.A.2

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