Triangle Angles and Relationships

In this video, Smita Chargon explains how to find missing angles in triangles using various mathematical concepts. The video covers solving for missing angles in four different triangles, utilizing the angle sum property, isosceles triangle properties, the exterior angle theorem, and linear pair concepts. Each triangle is addressed with step-by-step solutions, demonstrating how to apply these concepts effectively. The video concludes with a call to action for viewers to like and subscribe for more educational content.

What is the main goal of the video tutorial?

• To understand the history of triangles

• To learn about different types of triangles

• To calculate the perimeter of triangles

• To solve for missing angles in triangles

What is the sum of angles in any triangle?

• 180 degrees

• 90 degrees

• 270 degrees

• 360 degrees

If two angles in a triangle are 70 degrees and 35 degrees, what is the third angle?

• 75 degrees

• 105 degrees

• 85 degrees

• 95 degrees

In an isosceles triangle, if one of the equal angles is 68 degrees, what is the measure of the other equal angle?

• 68 degrees

• 72 degrees

• 64 degrees

• 70 degrees

How do you find the third angle in an isosceles triangle if two angles are known?

• Multiply the two angles

• Divide the sum of the two angles by 2

• Add the two angles and subtract from 180

• Add the two angles and subtract from 360

What does the exterior angle theorem state?

• The exterior angle is equal to the sum of all interior angles

• The exterior angle is equal to the sum of the adjacent interior angles

• The exterior angle is equal to the difference of the two opposite interior angles

• The exterior angle is equal to the sum of the two opposite interior angles

If an exterior angle of a triangle is 127 degrees, what is the sum of the two opposite interior angles?

• 127 degrees

• 180 degrees

• 90 degrees

• 360 degrees

What is a linear pair of angles?

• Two angles that are equal

• Two angles that add up to 180 degrees

• Two angles that add up to 90 degrees

• Two angles that are complementary

If one angle in a linear pair is 120 degrees, what is the measure of the other angle?

• 60 degrees

• 120 degrees

• 90 degrees

• 180 degrees

In a triangle, if two angles are 60 degrees and 50 degrees, what is the measure of the third angle?

• 80 degrees

• 90 degrees

• 100 degrees

• 70 degrees