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dem82 [27]
3 years ago
12

WILL MARK BRAINLIST!! Please help!!!

Mathematics
2 answers:
ELEN [110]3 years ago
3 0

Answer:

the sum of total angles of triangle is 180°.

lutik1710 [3]3 years ago
3 0
40 Degrees.
4x + 3x + 2x = 180°
9x = 180°
x = 180° / 9
x = 20°
4x = 4 × ( 20° )
4x = 80°
3x = 3 × ( 20° )
3x = 60°
2x = 2 × ( 20° )
2x = 40°
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