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nika2105 [10]
3 years ago
14

In the figure, mAB = 45° and mCD = 23°. The diagram is not drawn to scale.

Mathematics
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

Option A. x=34\°

Step-by-step explanation:

we know that

The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.

x=\frac{1}{2}(arc\ CD+arc\ AB)

substitute the values

x=\frac{1}{2}(23\°+45\°)

x=34\°

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