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Measuring Angles

WALT: measure angles using a protractor.

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Instructions:

Spend some time practicing how to measure angles on the Measuring Angles game.
Once you think you understand how to measure angles accurately, take a screenshot of the page when you get an answer correct.
The game will reset after 10 different angles.
By the end of the week, please add 20 different angles onto this presentation to show your understanding.

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EXAMPLE:

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A triangle has angle measurements of 74°, 98°, and 8°. What kind of triangle is it?�acute�right�obtuse

What kind of triangle is this?

equilateral

isosceles but not equilateral

scalene

A triangle has side lengths of 13 centimetres, 19 centimetres, and 13 centimetres. What kind of triangle is it?�equilateral�isosceles but not equilateral�scalene

A triangle has side lengths of 10 metres, 7 metres, and 7 metres. Is this triangle scalene?�yes no

KEY

There is 180 degrees in a triangle.

There is 360 degrees in a rectangle.

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Is this triangle isosceles?

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What is the measure of the missing angle?

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What is the measure of the missing angle?

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KEY� Read the following before you answer the next slides.

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Classify each angle as acute, obtuse, right, or straight.

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Classify each angle as acute, obtuse, right, or straight.

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Calculate the missing angle using your knowledge of a ‘right angle’.

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Calculate the missing angle

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Find the measure of each angle in degrees.

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Measuring Angles