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Mashutka [201]
3 years ago
9

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 thi

rd angle?
Mathematics
1 answer:
Mars2501 [29]3 years ago
7 0

Answer:

80°

Step-by-step explanation:

The sum of the angles of any triangle must add up to 180°.  If you form a triangle with an angle of 40° and another angle of 60°, the sum of those two angles is 40 + 60 = 100, so the measure of the third angle: 180 - 100 = 80°.

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The law of sines states:
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:)
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