Herhaling hoeken H4
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Items in this lesson
Slide 1 - Slide
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0:30
Right angle
Acute angle
Obtuse angle
Straight angle
Full angle
Slide 2 - Drag question
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0:30
90°
180°
360°
Slide 3 - Drag question
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A
∠A=53°
B
∠A=127°
C
∠A=37°
D
∠A=143°
Slide 4 - Quiz
Draw triangle ABC with
AB=4cm,∠A=120°,∠B=20°
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5:00
Slide 5 - Open question
∠A123=...°
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0:30
Slide 6 - Open question
Why are they equal?
∠A4=∠A1=42°
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0:30
A
They are both straight angles
B
They are both right angles
C
Together they make a straight angle
D
They are opposite angles
Slide 7 - Quiz
How big is ?
∠A5
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0:30
A
(rechte hoek)
B
(gestrekte hoek)
C
(overstaande hoeken)
D
niets
Slide 8 - Quiz
How big is ?
∠A5
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0:45
Slide 9 - Open question
Calculate:
∠Q1,∠Q2,∠Q3,∠Q4,∠Q7
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10:00
