3 years ago

A triangle has angles that measure 40° and 80°. What is the measure of the third angle of the triangle?

Mathematics

2 answers:

vladimir2022 [97]3 years ago

8 0

Answer:

60°

Step-by-step explanation:

40+80 = 120

180 - 120 = 60°

zalisa [80]3 years ago

6 0

Answer:

60°

Step-by-step explanation:

The sum of all three triangle angles add up to 180°. To solve for the last angle, add the sides you know together and subtract the sum from 180. This will leave you with the third angle's measurement,

40 + 80 = 120

180 - 120 = 60

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