Question

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in the following figure angle abd=3 angle dab and angle bdc= 120 degree find angle abd​

Answer 1

Answer:

90 degree

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Step-by-step explanation:

let angle DAB=x

then angle ABD=3x

Angle ADB + 120 = 180

Angle ADB = 180-120

Angle ADB= 60

x + 3x + 60 = 180

4x +60= 180

4x = 180-60

4x = 120

x= 120/4

x=30degree

Angle ABD= 3x = 3*30= 90 degree