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Bell Work

125 °. x°. A. D. z. 15 °. B. C. Find the missing angle measures. <PQR and <RQS are supplementary angles, so m PQR + m RQS = 180° 125 + y = 180 -125 -125 y = 55°. P. R. Q. y °. T. S. <PQR and <TQS are vertical angles. So, the value of x is 125 °.

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Bell Work

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  1. 125° x° A D z 15° B C Find the missing angle measures. <PQR and <RQS are supplementary angles, so mPQR+ mRQS= 180° 125 + y = 180 -125 -125 y = 55° P R Q y° T S <PQR and <TQS are vertical angles. So, the value of x is 125°. <ABD and <DBC are complementary angles, so mABD+ mDBC= 90° z + 15 = 90 -15 -15 z = 75° Bell Work

  2. Practice:Angle Relationships Packet

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