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balu736 [363]
2 years ago
11

Please help thank you!

Mathematics
1 answer:
Lena [83]2 years ago
6 0
1 is D, an angle bisector only cuts the original angle in half.

2 is 
9x - 18 = 3x
6x - 18 = 0
6x = 18
x = 3

3 is 9(3) - 18 = 27 - 18 = 9
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