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Mathematics 21 Online
OpenStudy (anonymous):

Sketch and tell if true or false: Given

OpenStudy (anonymous):

what?

OpenStudy (anonymous):

|dw:1315783361693:dw| It's true because the common side is CB, which means both angles (<ACB and <BCD) share it, is in the middle of angle ACD, which is a right triangle as given by the information. If both angles ACB and BCD exist within <ACD and they are the only two angles that make up <ACD then they are complementary.

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