Exploring Acute, Obtuse, and Right Angles

What defines an acute angle?

• An angle less than 90 degrees

• An angle of 180 degrees

• An angle greater than 90 degrees

• An angle exactly 90 degrees

What symbol is typically used to indicate a right angle?

• A circle

• A triangle

• A star

• A square

Which angle is classified as obtuse?

• 115 degrees

• 90 degrees

• 180 degrees

• 45 degrees

What is the measure of a straight angle?

• 360 degrees

• 270 degrees

• 180 degrees

• 90 degrees

An angle of 70 degrees is classified as which type of angle?

• Straight

• Obtuse

• Acute

• Right

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

• 45 degrees

• 90 degrees

• 135 degrees

• 180 degrees

In a right angle divided into two parts, if one part is 5x + 4 and the other is 7x - 10, what is the value of x?

• 9

• 8

• 7

• 6

What is the sum of angles in a straight line?

• 360 degrees

• 90 degrees

• 180 degrees

• 270 degrees

If angle ABC is a straight line and angle EBC is 70 degrees, what is the measure of angle ABD?

• 60 degrees

• 50 degrees

• 70 degrees

• 40 degrees

In the problem involving angles ABC, DBC, and ABD, if angle one is x squared plus 16 and angle two is 20x minus 25, what is the measure of angle two?

• 105 degrees

• 125 degrees

• 115 degrees

• 135 degrees