Lesson 12: Types of Angles

Multiple Choice

Which of the following best describes an acute angle?

• An angle exactly 90°

• An angle less than 90°

• An angle greater than 90° but less than 180°

• An angle exactly 180°

Open Ended

Explain how you can use the corner of a piece of paper to identify different angle types.

Multiple Choice

Which angle type is smaller than a square corner?

• Acute

• Right

• Obtuse

• Straight

Drag and Drop

A rectangle has​

Placeholder

and​

Placeholder

​

Drag these tiles and drop them in the correct blank above

four right angles

2 pairs of parallel lines

has no sides equal

is never a square

Multiple Select

Which angle types can a triangle have? Select all that apply.

• Acute angles

• Right angles

• Obtuse angles

• Straight angles

Open Ended

Name an everyday object that has an acute angle, a right angle, and an obtuse angle.

Multiple Choice

Which type of angle measures exactly 90 degrees?

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Multiple Choice

What is the difference between an acute angle and an obtuse angle?

• An acute angle is less than 90°, while an obtuse angle is greater than 90° but less than 180°.

• An acute angle is exactly 90°, while an obtuse angle is exactly 180°.

• An acute angle is greater than 90°, while an obtuse angle is less than 90°.

• An acute angle is exactly 180°, while an obtuse angle is less than 90°.

Math Response

What is the value of x?

Type answer here

Correct Answer: 128

Deg^°

Rad