CBSE Class 9 Answered
In
fig., two straight lines AB and CD intersect each other at O. If COE = 70o, find the values of a, b and c.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
CO and EO stand on AB, therefore
4b + 70o + b = 180o
5b = 110o
b = 22o
Also, a = 4b (vertically app s)
a = 4 22o = 88o
Now a + 2c = 180o
88 + 2c = 180o 2c = 92o
c = 46o
Hence a = 88o, b = 22o, c = 46o
Answered by | 04 Jun, 2014, 03:23: PM
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