Ellis is measuring the angles of a triangle. She measures the first two gets 30 and 100. What should be the measure of the third angle?

Question

Mathematics

Emilee Macdonald

7 July, 10:55

Ellis is measuring the angles of a triangle. She measures the first two gets 30 and 100. What should be the measure of the third angle?

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Answers (1)

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Brynlee · Answer 1

The angles of a triangle always adds up to 180 degrees.

Hence, if you have the measures of 2 angles of a triangle, you can find the measure of the third angle by deducting the measures of the first 2 angles from 180 degrees.

30+100 = 130

The sum of the measures of the first 2 angles of the triangle is 130 degrees.

180-130 = 50

Ans: The measure of the third angle is 50 degrees.