ziyonsolange
29.01.2020 •
Mathematics
In the given the figure above, m∠bac = 64° and m∠cba = 56°.
part i: find the m∠dec.
part ii: explain the steps you took to arrive at your answer. make sure to justify your answer by identifying any theorems, postulates, or definitions used.
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Ответ:
since the triangles are similar
angle DEC = 60 degrees
3 angles inside a triangle equal 180 degrees
BAC = DCE = 64
CBA = EDC = 56
DEC = 180 -56 -64 = 60 degrees
used angle-angle theorem
Ответ:
what
Step-by-step explanation: