3 years ago

A triangle has angles measuring 15° and 45°. What is the measurement of the triangle’s third angle?

2 answers:

6 0

First you need to know that the internal angles of a triangle always equals 180°. Therefore:

15+45= 90°

Then since the angles should equal 180, you do:

180-90=90

So the missing angle equals 90°

lara31 [8.8K]3 years ago

6 0

Answer:

120 degrees

Step-by-step explanation:

180-15-45=120

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