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25-03-2017
Mathematics

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Find the measure of the third angle in each triangle.
Select one:
a. 45
b. 56
c. 79
d. 180

Find the measure of the third angle in each triangle Select one a 45 b 56 c 79 d 180 class=

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25-03-2017

The sum must be 180 degrees. The single hash mark on the left triangle means that angle is equal to the single hash mark on the right triangle. The same is true for the double hash marks.
56 + 45 + x = 180
101 + x = 180
x = 79

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