Respuesta :

suspho9

Answer:

x = 15

Step-by-step explanation:

opposite angles = congruent

150 : 10x = 1 : 1

150 : 10x = 1

15x = 1

x = 15

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check

150 : 10 * 150 = 1 : 1

150 : 150 = 1 : 1

1 : 1 = 1 : 1

the answer is good

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