copyright@ed2netlearning,inc1 angles grade 3. copyright@ed2netlearning,inc2 hello, how are you...
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copyright@Ed2netLearning,Inc 1
ANGLES
GRADE 3
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Hello, How are you doing?Today, we are going to start a new lesson on
Angles.
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AngleAngle is defined as the figure formed when
two rays or lines meet at the same point.
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Different type of anglesDifferent type of angles- Right angle Acute angle Obtuse angle Straight angle
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Right angleRight angle – An
angle that forms a square corner.
Right angle symbol
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Acute angleAcute angle –An
angle that is less than right angle.
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Obtuse AngleObtuse Angle – An
angle that is greater than right angle.
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What is the angle formed at the point A in the figure given below?Answer- Right angle
A
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Straight angleStraight Angle - An
angle formed by a straight line.
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Important TipPerpendicular Lines
always form Right angle.
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Name the angle formed by a line segment.Answer- straight angle
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How many angles greater than 90° are in the word FAME?Answer – 2 (in alphabet A)
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Which letter is made up of two right angles?a) Wb) Dc) Ld) T
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Draw the following angles.a) Right Angleb) An angle less than 90°
A B
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ASSESSMENT
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1. Name the angles greater than 90° in the figure given below.Answer – 2 and 4
1 2
5 4
3
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2. Name the angles that are 90° in the figure given in Question No 1.Answer – 1 and 5
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3. Match the following.
Angle formed by alphabet V
Right angle
Angle formed when clock shows 4 O’clock
Acute angle
Angles formed by alphabet H
Obtuse angle
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4. Name the angle formed by the letter L of the English alphabet.Answer – Right angle
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5. How many angles are 90° in the figure given below?
Answer - 2
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6. Name all the angles formed in the figure given below.
Answer- acute angle, obtuse angle, right angle
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7. Name the angles formed by the figure given below.
Answer – acute
angle and obtuse angle
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8. Name the angle formed when clock shows 3 O’clock?Answer- right angle
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9. What kind of angle is formed by the figure given below?Answer – acute and
obtuse angle
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10.Decide whether angle is acute, obtuse or right in the figure given below.
Answer – obtuse angle
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RecapAngles
Acute angle Obtuse angle Right angle Straight angle
Solved examplesPractice problems
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Good Work!Now Practice worksheets on the lesson.