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zubka84 [21]
3 years ago
11

Please help me guys

Mathematics
2 answers:
erastovalidia [21]3 years ago
5 0
2nd one its like one big right angle so must add to 90
So (x+9)+2x=90
OLga [1]3 years ago
3 0
(x+9) + 2x = 90
Explanation: (x+9) and 2x are two angles inside the 90 degree angle. Therefore if they are added together they will make the 90 degrees.
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