Question

plz...give me answer this problem

Answer 1

by thiiis you can get awnser

Answer 2

heyy...here is ur ans....

In the 1st figure..let the angles be a b and c
and bc be the base line then....angle b = 60 ( 180 - 120 ) exterior angle now the angle c = 50 ( 180 - 130 ) again exterior angle. Now we have two angles of a triangle so by angle sum property of a triangle we can get angle a 60 + 50 + a = 180 == a = 70

Now in the second figure...
angle a = 65 and angle c = 37 ( 180 - 143 ) again exterior angle so again be angle sum property of a triangle 65 + 37 + b = 180 == b = 78°
hope it helps u......if it then mark it branliest......thanks....