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Anna35 [415]
3 years ago
9

PLEASE HELP!! Pleaaseeeeee

Mathematics
1 answer:
geniusboy [140]3 years ago
5 0

Step-by-step explanation:

63+36+X = 180 (interior angles of a triangle equal 180)

X = 180-99

X= 81

X+Z= 180(angles on a straight line adds up to 180)

81+y= 180

Z=180-81

Z =99

13+Z+Y=180

13+99+Y=180

Y=180-112

Y=68

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