Basic Angles

Identify the right angle in the picture.

• The angle in the bottom left corner of the picture.

• The angle in the top left corner of the picture.

• The angle in the bottom right corner of the picture.

• The angle in the top right corner of the picture.

Identify the right angle in the picture.

• The angle at the corner of the letter 'O' in the picture.

• The angle at the corner of the letter 'P' in the picture.

• The angle at the corner of the letter 'L' in the picture.

• The angle at the corner of the letter 'T' in the picture.

Identify the obtuse angle in the picture.

• Angle B

• Angle C

• Angle A

• Angle D

Identify the obtuse angle in the picture.

• The obtuse angle is angle C.

• The obtuse angle is angle A.

• The obtuse angle is angle D.

• The obtuse angle is angle B.

Identify the acute angle in the picture.

• The acute angle in the picture is 45 degrees.

• The acute angle in the picture is 120 degrees.

• The acute angle in the picture is 90 degrees.

• The acute angle in the picture is 60 degrees.

Identify the acute angle in the picture.

• The acute angle in the picture is 45 degrees.

• The acute angle in the picture is 60 degrees.

• The acute angle in the picture is 120 degrees.

• The acute angle in the picture is 90 degrees.

Draw a right angle and label it.

• 90°

• 360°

• 45°

• 180°

Draw a right angle and label it.

• 45°

• 90°

• 360°

• 180°

Compare the two angles and determine their type: 90 degrees and 120 degrees.

• Straight angle

• Obtuse angle

• Acute angle

• Right angle

Compare the two angles and determine their type: 45 degrees and 100 degrees.

• 45 degrees is a right angle and 100 degrees is an acute angle.

• 45 degrees is an acute angle and 100 degrees is a right angle.

• 45 degrees is an acute angle and 100 degrees is an obtuse angle.

• 45 degrees is an obtuse angle and 100 degrees is an acute angle.