Comparing the sizes of angles

Which angle is the biggest?

• Right angle

• Obtuse angle

• Acute angle

e is ( ) than a right angle, so it is an ( ) angle

• bigger, acute

• bigger, obtuse

• smaller, acute

• smaller, obtuse

Choose the biggest angle in this shape

• A

• B

• C

Choose the largest angle in this shape

• A

• B

• C

• D

How many obtuse angles in this shape

• 1

• 2

• 3

• 4

Arrange the angles in order from the biggest to the smallest

• B, D, A, E, C

• A, D, C, E, B

• C, A, E, B, D

Which of the time would form a right angle on the clock?

• 9:30

• 11:15

• 3:00

• 6:15

The time is between 7:00 and 8:00, and it forms an acute angle. What is the time?

• 7:05

• 7:15

• 7:30

• 7:55

Which of the dotted line would form the smallest angle with the red line?

• A

• B

• C

• D

Which of the dotted line would form an acute angle with the red line?

• A

• B

• C

• D