Angles - Sarah Finnegan | Biblioteka

4

Match the angle names with the size of the angles

Stavka koja se može prevući		Odgovarajuća stavka
Acute angle		greater than 180° but less than 360°
Reflex angle		greater than 90° but less than 180°
Right angle		greater than 0° but less than 90°
Obtuse angle		90°

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Angles on a straight line add up to

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4

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Angle x is

null

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What type of angles are inside this triangle?

Obtuse

Acute

Reflex

Right

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What is the measurement of this angle?

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Angle x is

null

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The correct calculation to find x is

360 + 53

180 - 53

180 + 53

360 - 53

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1

What is the correct name for the labelled angle?

∠R

∠SQR

∠QRS

∠RSQ

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U.4

4

Put the stages of measuring an angle in the correct order

Follow the scale starting with zero around until you find the value the line crosses at
Decide which side of the protractor you are using by finding where the bottom of the angle crosses 0
Check your answer is the correct type of angle - if you have an acute answer is the angle you are measuring acute
Place the protractor on the angle with the point of the angle at the centre of the protractor

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	90°	180°	270°	360°
Full turn
Quarter turn
Half turn
Three quarter turn

	90°	180°	270°	360°
Full turn
Quarter turn
Half turn
Three quarter turn