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(SHOW THE SOLUTION) ​
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(SHOW THE SOLUTION)
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(SHOW THE SOLUTION) ​-example-1
User Dreinoso
by
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1 Answer

5 votes

Answer:

See below ~

Explanation:

Rule :

Opposing angles in a cyclic quadrilateral are supplementary, which means they add up to 180°.

Q12

  • 4x + 9 + 3x + 3 = 180
  • 7x + 12 = 180
  • 7x = 168
  • x = 24

Q13

  • 3x + 2 + 3x - 32 = 180
  • 6x - 30 = 180
  • 6x = 210
  • x = 35
User Fiver
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