What do you call an angle with exactly a 90-degree measurement?

(small letters)

Define Obtuse

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Define Acute

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Define Right Angle

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Define Straight

• Less than 90

• Exactly 90

• Greater than 90 and less than 180

• Exactly 180

What is the measurement of a right angle?

• 70
• 80
• 90
• 180

• Straight Angle

• Acute Angle

• Right Angle

• Obtuse Angle

Name an obtuse angle formed by intersecting lines in the picture:

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• undefinedRNQ

Which angle formed by intersecting lines is an acute angle?

Which angle formed by intersecting lines is an obtuse angle?