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Umnica [9.8K]
3 years ago
8

1. If Salwa constructs a triangle using her protractor, and the first two

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0

Answer: 20°

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Angle 1 = 55°

Angle 2 = 105°

The sum of the three interior angles of a triangle is always 180°.

So:

180 = 55+105 + x

Where x is the missing angle.

Solving for x:

180-55-105 =x

20°=x

Feel free to ask for more if needed or if you did not understand something.

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