Question

Find the measure of the third angle of triangles whose two angles are given below 1)38*, 102* 2)116*, 30* 3) 40*, 80*

Answer 1

1)40
2)34
3)60
.......

Answer 2

Hey buddy here is your answer !!

For first triangle ,
38 + 102 + third side = 180
(by angle sum property)

140 + third side = 180
Third side = 40

For second triangle ,
116 +30 + third side = 180
(by angle sum property )

146 + third side = 180
Third side = 34


For third triangle ,
40 + 80 + third side = 180
120 + third side = 180
Third side = 60

Hence proved


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