2 years ago

Find x (4+25) (6x+20) (3x+25)

Mathematics

1 answer:

Paraphin [41]2 years ago

6 0

Answer: 15

Step-by-step explanation:

Opposite angles of a cyclic quadrilateral are supplementary, so:

$3x+25+6x+20=180\\\\9x+45=180\\\\9x=135\\\\x=\boxed{15}$

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