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Daniel [21]
3 years ago
12

Please help me on this

Mathematics
2 answers:
FromTheMoon [43]3 years ago
7 0

56

a = 18

18 and 43 is 124

180 minus 124 is 56

zvonat [6]3 years ago
5 0
There are 180 degrees in all
63 + 99 = 162
180 - 162 = 18 so the missing length is 18
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