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

Find x (4+25) (6x+20) (3x+25)-example-1
User MrsTang
by
5.0k points

1 Answer

9 votes

Answer: 15

Explanation:

Opposite angles of a cyclic quadrilateral are supplementary, so:


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

User Mike Dymond
by
5.8k points
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