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slavikrds [6]
3 years ago
8

Circle P is divided into four central angles by the diameters AC and BD.

Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

m∠CPD = 129.75°

Step-by-step explanation:

m∠APD + m∠APB = 180 since the angles are supplementary

x + 1 + 3x - 18 = 180

4x - 17 = 180

4x = 197

x = 49.25

m∠APB = 3(49.25) - 18 = 129.75

m∠APB = m∠CPD because the angles are vertical angles

m∠CPD = 129.75°

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