Respuesta :

khaif

40+10=50

180-50=130

10+20=30

180-30=15

angle at center add up to 360

360-(130+150)=80°

The triangle is an equilateral.

180-80=100

both base angles are 50°

BaddieLoLz

Answer:

50 degrees.

Step-by-step explanation:

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