maggie2018
14.11.2019 •
Mathematics
What fraction makes the whole number 3?
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Ответ:
Ответ:
Triangle ABC is isosceles so the base angles are equal.
So 2x = 50 degrees.
- and since the 3 angles of a triangle add up to 180 degrees
5y + 10 = 180 - 2(50)
5y = 180 - 100 - 10
5y = 70
y = 14 degrees answer