Understanding Angles in Overlapping Triangles

The video tutorial explains how to find the measures of angles x, y, and w using a diagram of overlapping triangles. It demonstrates the use of the interior angle sum property of triangles, which states that the sum of the interior angles of a triangle is 180 degrees. The tutorial walks through solving for each angle by setting up equations based on known angle measures and solving for the unknown angles.

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

• 270 degrees

• 360 degrees

• 180 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

In the left triangle, if angle y is unknown, and the other two angles are 82 and 50 degrees, what is the measure of angle y?

• 62 degrees

• 52 degrees

• 58 degrees

• 48 degrees

Tags

CCSS.8.G.A.5

Which equation represents the sum of angles in the left triangle?

• y + 50 + 48 = 180

• y + 82 + 48 = 180

• y + 82 + 50 = 180

• y + 82 + 27 = 180

Tags

CCSS.8.G.A.5

What is the first step in solving for angle y in the left triangle?

• Add 82 and 48

• Subtract 82 from 180

• Add 82 and 50

• Subtract 50 from 180

Tags

CCSS.8.G.A.5

What is the measure of angle w in the right triangle if the other two angles are 115 and 27 degrees?

• 28 degrees

• 38 degrees

• 48 degrees

• 58 degrees

Tags

CCSS.8.G.A.5

Which equation represents the sum of angles in the right triangle?

• w + 115 + 27 = 180

• w + 115 + 48 = 180

• w + 115 + 38 = 180

• w + 27 + 38 = 180

Tags

CCSS.8.G.A.5

What is the first step in solving for angle w in the right triangle?

• Subtract 27 from 180

• Add 115 and 27

• Subtract 115 from 180

• Add 115 and 48

Tags

CCSS.8.G.A.5

In the small overlapping triangle, if angle x is unknown, and the other two angles are 27 and 48 degrees, what is the measure of angle x?

• 110 degrees

• 105 degrees

• 95 degrees

• 100 degrees

Tags

CCSS.8.G.A.5

Which equation represents the sum of angles in the small overlapping triangle?

• x + 27 + 38 = 180

• x + 27 + 48 = 180

• x + 48 + 38 = 180

• x + 27 + 50 = 180

Tags

CCSS.8.G.A.5

What is the first step in solving for angle x in the small triangle?

• Subtract 48 from 180

• Add 27 and 50

• Add 27 and 48

• Subtract 27 from 180

Tags

CCSS.8.G.A.5