This grade 4 angles quiz asks 10 multiple-choice questions on measuring and adding angles, and each answer comes with a short explanation.
Answer these 10 multiple-choice questions on measuring and adding angles (4.MD.C.5, 4.MD.C.6, 4.MD.C.7). Read each protractor carefully, think about which scale starts at 0, and choose the one correct answer.
What is the measure of the angle formed by rays A and B?
A\(125^{\circ}\)
B\(55^{\circ}\)
C\(35^{\circ}\)
D\(65^{\circ}\)
Question 2
How many degrees does the minute hand of a clock turn in 20 minutes?
A\(120^{\circ}\)
B\(60^{\circ}\)
C\(90^{\circ}\)
D\(240^{\circ}\)
Question 3
A circle is cut into 6 equal sectors that meet at the center. What is the measure of each sector's angle?A circle cut into 6 equal sectors.
A\(30^{\circ}\)
B\(90^{\circ}\)
C\(60^{\circ}\)
D\(45^{\circ}\)
Question 4
An angle opens through 85 one-degree angles. What is its measure?
A\(58^{\circ}\)
B\(95^{\circ}\)
C\(8^{\circ}\)
D\(85^{\circ}\)
Question 5
Angle AOD measures 40 degrees and angle DOB measures 35 degrees. What is the measure of angle AOB?Two adjacent angles.
A\(5^{\circ}\)
B\(75^{\circ}\)
C\(85^{\circ}\)
D\(65^{\circ}\)
Question 6
The square corner is 90 degrees. What is the measure of x?Square corner.
A\(118^{\circ}\)
B\(62^{\circ}\)
C\(52^{\circ}\)
D\(72^{\circ}\)
Question 7
The angles on a straight line add up to 180 degrees. What is the measure of x?Straight line.
A\(55^{\circ}\)
B\(65^{\circ}\)
C\(305^{\circ}\)
D\(45^{\circ}\)
Question 8
Which equation can be used to find angle x if the whole angle is 120 degrees and one part is 52 degrees?
A\(52 + 120 = x\)
B\(x - 120 = 52\)
C\(52 + x = 120\)
D\(120 + x = 52\)
Question 9
What is the measure of the angle formed by rays A and B?
A\(95^{\circ}\)
B\(115^{\circ}\)
C\(65^{\circ}\)
D\(75^{\circ}\)
Question 10
A dial turns 90 degrees and then 135 degrees more. How many degrees has it turned in all?
A\(45^{\circ}\)
B\(135^{\circ}\)
C\(225^{\circ}\)
D\(180^{\circ}\)
🎉 Quiz complete!
0 / 10
How does this quiz work?
Read each question, choose one answer among A, B, C and D, then check it: a short explanation appears after every answer. Your score out of 10 is shown at the end, and you can restart the quiz as often as you like.
What should you review before the quiz?
Reread the key facts of the lesson and the worked example. If a question is hard, go back to the matching part of the lesson, then try the quiz again. Write your work on scrap paper: most mistakes come from skipping a step, not from the idea itself.
Remember:
A one-degree angle turns through 1/360 of a circle.
A quarter turn is 90 degrees, a half turn is 180 degrees, and a full turn is 360 degrees.
To use a protractor, put its center on the vertex and one ray on the 0 mark.
The measure of a whole angle is the sum of the measures of its non-overlapping parts.
Use a letter for an unknown angle and solve an addition or subtraction equation.
How to use this grade 4 angles quiz
Retake this grade 4 angles quiz until every answer is right, then move on to the worksheet and the test.
