Grade 4 Exam > Grade 4 Notes > Math > Worksheet (with Solutions): Angle Introduction
Worksheet (with Solutions): Angle Introduction
# Angle Introduction Worksheet
Section A: Multiple Choice Questions
Q1: An angle is formed when two __________ meet at a common point.
(a) lines
(b) rays
(c) circles
(d) triangles
Q2: What is the common endpoint where two rays meet to form an angle called?
(a) side
(b) vertex
(c) edge
(d) corner
Q3: Which angle measures exactly 90 degrees?
(a) acute angle
(b) obtuse angle
(c) right angle
(d) straight angle
Q4: An angle that measures less than 90 degrees is called:
(a) right angle
(b) obtuse angle
(c) acute angle
(d) reflex angle
Q5: Which of the following angles measures more than 90 degrees but less than 180 degrees?
(a) acute angle
(b) right angle
(c) obtuse angle
(d) straight angle
Q6: A straight angle measures:
(a) 45 degrees
(b) 90 degrees
(c) 180 degrees
(d) 360 degrees
Q7: Which tool is commonly used to measure angles?
(a) ruler
(b) compass
(c) protractor
(d) calculator
Q8: How many degrees are in a full rotation or complete turn?
(a) 90 degrees
(b) 180 degrees
(c) 270 degrees
(d) 360 degrees
Section B: Fill in the Blanks
Q9: An angle is measured in units called __________.Q10: The two rays that form an angle are called the __________ of the angle.Q11: An angle that measures greater than 90 degrees but less than 180 degrees is called an __________ angle.Q12: When the hands of a clock show 3:00, they form a __________ angle.Q13: An angle measuring exactly 180 degrees forms a __________ line.Q14: The symbol used to represent degrees is __________.Section C: Word Problems
Q15: Sarah is looking at a corner of her notebook. The corner forms a right angle. What is the measure of this angle in degrees?Q16: Tommy draws an angle that measures 45 degrees. Is this angle acute, right, or obtuse? Explain your answer.Q17: A door is partially open and forms an angle of 120 degrees with the wall. What type of angle is this?Q18: Maria measures an angle using a protractor and finds it is 90 degrees. She then measures another angle and finds it is 45 degrees. What is the total of the two angle measurements?Q19: A slice of pizza forms an angle of 60 degrees at the tip. The next slice forms an angle of 80 degrees. Which slice has the wider angle, and what type of angles are they?Q20: Ben is making a paper airplane. One fold creates an angle of 30 degrees, and another fold creates an angle of 150 degrees. Identify each angle as acute, right, or obtuse.The document Worksheet (with Solutions): Angle Introduction is a part of the Grade 4 Course Math Grade 4.
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Apr 22, 2026 Last updated
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