In the figure below, what is the sum, in terms of n, of the degree measure of the four angles marked with question marks (?)
a) n
b)2n
c) 180-n
d) 360-n
e)360-2n
- - - - -615
Please show steps so I can understand. Thanks in advance!!!
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In the figure below, what is the sum, in terms of n, of the degree measure of the four angles marked with question marks (?)
a) n
b)2n
c) 180-n
d) 360-n
e)360-2n
- - - - -615
Please show steps so I can understand. Thanks in advance!!!
Hello,
Note that
But we know that
Hence
Similarly, we have
Thus the sum of the four angles OAD, ODA, OBC and OCB is 2n.