Angle Measurement Concepts

This video tutorial covers the basics of angles, including how to measure them using a protractor, the angle addition rule, and how to find missing angles using subtraction. It also explains how to divide angles into equal parts and apply prior knowledge to solve angle-related problems. The tutorial concludes with a review of angle notation.

What is the vertex in the angle notation 'angle ABC'?

• C

• None of the above

• A

• B

If angle ABC is 40 degrees and angle CBD is 20 degrees, what is the measure of angle ABD?

• 80 degrees

• 70 degrees

• 60 degrees

• 50 degrees

What tool is used to measure angles?

• Protractor

• Calculator

• Compass

• Ruler

How do you find the measure of a larger angle using its parts?

• Subtract the smaller angles

• Multiply the smaller angles

• Add the smaller angles

• Divide the smaller angles

What is the sum of angles in a circle?

• 180 degrees

• 270 degrees

• 360 degrees

• 450 degrees

If angle ATB is 100 degrees, angle BTC is 75 degrees, and angle CTD is 25 degrees, what is the measure of angle ATD?

• 170 degrees

• 160 degrees

• 180 degrees

• 150 degrees

How can you find a missing angle measure if you know the total and one part?

• Subtract the known part from the total

• Add the known part to the total

• Divide the known part by the total

• Multiply the known part by the total

What is the result of dividing a 90-degree angle into two equal parts?

• 30 degrees each

• 90 degrees each

• 45 degrees each

• 60 degrees each

If a straight angle measures 180 degrees, what is the measure of angle C and D if angle A and B is 50 degrees and angle B and C is 110 degrees?

• 10 degrees

• 40 degrees

• 20 degrees

• 30 degrees

What is the measure of the angle if Emma, Tala, and Sujin each ate a 36-degree slice of pizza?

• 72 degrees

• 108 degrees

• 144 degrees

• 180 degrees