pls tell me the answer
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your answer dear
Step-by-step explanation:
exterior angle in equal to the sum of two opposite angle
In ∆ ABC
LA : LB , LC : ?
3 : 5
let LA = 3x , LB = 5x
LA + LB = LACD
3x + 5x = 120°
8x = 120°
x = 120°/8
x = 15°
LA = 3x = 3(15) = 45
LB = 5x = 5(15) = 75
In ∆ABC
sum of angles in a triangle is equal to 180°
LA + LB + LC = 180°
45° + 75° + LC = 180°
120° + LC = 180°
LC = 180° - 120°
LC = 60°
Hope it help you
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