one of the exterior an
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Sum of interior opposite angle is equal to the exterior angle
Given exterior angle=80
∘
and interior angle ratio is (3:5)
Let the angles be x3x,5x
3x+5x=80;8x=80;x=10
o
∴30
o
&50
o
are interior opposite angles
30+50+A=180 [Sum of angles in a triangle is 180
o
]
A=100
o
A=100
o
,B=30
o
,C=50
o
are angles of triangle.
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