Exploring Joining and Separating Angles in GoMath

What is the result when you add a 40-degree angle to a 65-degree angle?

• 115 degrees

• 95 degrees

• 100 degrees

• 105 degrees

What type of angle measures exactly 180 degrees?

• Obtuse angle

• Straight angle

• Acute angle

• Right angle

If an angle is a right angle, what is its degree measure?

• 45 degrees

• 180 degrees

• 90 degrees

• 360 degrees

What is the total degree measure of a circle?

• 180 degrees

• 90 degrees

• 360 degrees

• 270 degrees

How do you find a missing angle when you know the total angle measure and one part?

• Division

• Addition

• Multiplication

• Subtraction

If angle ABC is a straight angle and angle ABD is 90 degrees, what is the measure of angle DBC?

• 90 degrees

• 180 degrees

• 45 degrees

• 60 degrees

To find the value of angle X when given a total of 225 degrees and a straight angle part of 180 degrees, what operation do you use?

• Subtraction

• Addition

• Multiplication

• Division

If you know angle DRL is 75 degrees and angle LRT is 85 degrees, what is the missing angle if DRQ is a straight angle?

• 20 degrees

• 25 degrees

• 15 degrees

• 30 degrees

What is the value of angle X if the total is 360 degrees, and you know two parts are 125 degrees and 90 degrees?

• 165 degrees

• 155 degrees

• 135 degrees

• 145 degrees

What type of angle is greater than 90 degrees but less than 180 degrees?

• Obtuse angle

• Acute angle

• Right angle

• Straight angle