Answer:
answer 3:
×=42
Solution: 2x+69+x+3x+81=360
5x=210
X=42
(the sum of the outer ongles of a triangle is 360°)
answer 4:
43°
Solution: the son of the exterior segles of players
X² +99² + 2x² tb² +81² = 360²
x=43
Step-by-step explanation:
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