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jolli1 [7]
3 years ago
8

Quadrilateral abcd is inscribed in this circle. what is the measure of angle a?

Mathematics
1 answer:
Musya8 [376]3 years ago
8 0
Look at the picture.

(x+2)+(3x+6)=180\\\\4x+8=180\ \ \ \ |-8\\\\4x=172\ \ \ \ |:4\\\\x=43


m\angle A=(3\cdot43+6)^o=135^o

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