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Worksheet: Angle Classification

Q1:

Count the acute angles in this picture.

Q2:

Determine the type of the angle highlighted in orange.

  • Aacute angle
  • Bobtuse angle
  • Cright angle

Q3:

Which of the following defines an acute angle?

  • AAn acute angle is an angle whose measure is more than 1 8 0 .
  • BAn acute angle is an angle whose measure is more than 9 0 but less than 1 8 0 .
  • CAn acute angle is an angle whose measure is equal to 9 0 .
  • DAn acute angle is an angle whose measure is more than 0 and less than 9 0 .
  • EAn acute angle is an angle whose measure is equal to 1 8 0 .

Q4:

Which point is the vertex of the angle?

  • A 𝑅
  • B 𝑇
  • C 𝑆

Q5:

David got home at 8:00. If he wants to wait until the hands of the clock form a right angle before going out again, until what hour must he wait?

  • A11:00
  • B10:00
  • C12:00
  • D9:00
  • E1:00

Q6:

Determine the type of the angle highlighted in orange.

  • Aright angle
  • Bobtuse angle
  • Cacute angle

Q7:

At which of these times do the clock hands form a right angle?

  • A1 o’clock
  • B11 o’clock
  • C7 o’clock
  • D9 o’clock

Q8:

Determine the type of the angle highlighted in orange.

  • Aacute angle
  • Bright angle
  • Cobtuse angle

Q9:

Elizabeth set her alarm at 4:20 am. When the alarm rang, she snoozed it for 10 minutes. Determine the type of angle that the two clock hands will form when the alarm rings a second time.

  • Aobtuse
  • Bright
  • Cacute

Q10:

Which two rays are the sides of this angle?

  • A 𝑂 𝐸 , 𝐷 𝐸
  • B 𝑂 𝐷 , 𝑂 𝐸
  • C 𝐷 𝑂 , 𝐷 𝐸

Q11:

What is the name of the labeled angle?

  • A 𝐴 𝐶 𝐵
  • B 𝐵 𝐴 𝐶
  • C 𝐶 𝐵 𝐴

Q12:

Which of the following defines an obtuse angle?

  • AAn obtuse angle is an angle whose measure is more than 1 8 0 .
  • BAn obtuse angle is an angle whose measure is less than 9 0 .
  • CAn obtuse angle is an angle whose measure is equal to 9 0 .
  • DAn obtuse angle is an angle whose measure is more than 9 0 but less than 1 8 0 .
  • EAn obtuse angle is an angle whose measure is equal to 1 8 0 .

Q13:

How many degrees are there in a straight line?

  • A 3 6 0
  • B 9 0
  • C 1 8 0

Q14:

What is the size of a straight angle?

  • A
  • B
  • C
  • D

Q15:

How many obtuse angles are there in the figure?

Q16:

What kind of angle is in the figure?

  • Astraight angle
  • Bobtuse angle
  • Cright angle
  • Dacute angle

Q17:

What kind of angle is in the figure?

  • Aobtuse angle
  • Bacute angle
  • Cstraight angle
  • Dright angle

Q18:

What kind of angle is in the figure?

  • Aobtuse angle
  • Bright angle
  • Cacute angle
  • Dstraight angle

Q19:

Determine the type of angle that the two hands on a clock form when the time is 06:05.

  • Aright
  • Bacute
  • Cobtuse

Q20:

Determine the type of angle that the two hands on a clock form when the time is 01:30.

  • Aright
  • Bacute
  • Cobtuse