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rosijanka [135]

3 years ago

14

On a piece of paper use a protractor to construct a triangle with angle measures of 40 and 60 what is the measure of the third a

ngle?

1 answer:

Lina20 [59]3 years ago

7 0

Answer:

80°

Step-by-step explanation:

<u>The angles of a triangle must add up to 180°.</u>

40° + 60° + missing angle = 180°

100° + missing angle = 180°

<em>subtract 100° from both sides</em>

missing angle = 80°

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