14. If two angles of aquadrilateral are 77º and57° and out of therem – InterviewSolution

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14. If two angles of aquadrilateral are 77º and57° and out of theremaining two angles, oneangle is 10° smaller thanthe other, find theseangles.

Answer»

Answer:

57 + 77 + x + (x-10) =360.

134 + 2x-10 = 360.

2x-10 = 360 - 134.

2x-10 = 226

2x = 226+10

2x = 236

x = 236/2

x = 118 degrees

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