3 years ago

Please help! Picture is included! This is due very soon and I need help! Number 11. (10 points)

Mathematics

1 answer:

AlekseyPX3 years ago

8 0

Y+y+17+111+90=360
2y+128+90=360
2y=360-218
2y=142
y=142/2
y=71
thus, the angles are 71, 90, 111, 88.

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