The measures of 4 exterior angles of a pentagon are given. Find the fifth exterior angle
.
A. 51, 68°, 103°, 68°
B. 134°, 52°, 124°, 40°
C. 110°, 63°,57°, 87°
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Answer:
Let fifth angle be x,
x+40
o
+75
o
+125
o
+235
o
=540
o
(sum of interior angles of pentagon)
⇒x+375
o
=540
o
⇒x=540
o
−375
o
⇒x=165
o
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