In ∆ ABC, LA +LB = 166°and LB+Lc= 120°
find the measure of each angle of the
traingle:
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Answer:
LA = 60 LB = 106 LC=14
Explanation:
in triangle abc
LA+LB = 166°
total sum of traiangle will 180°
then LA +LB +LC =180°
As sum of angle ab is 166°
166°+LC =180°
LC=180 -166=14°
*LC =14°
LB +LC = 120
LB+14 = 120
then LB will 120 -14 =106
LB =106
Then angle A will LA +LB + LC =180
180 -(LB+LC) =LA
180 - 120 =60
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