1.

SPAMS WILL BE REPORTED!!!! I NEED STEP BY STEP XPLANATION ​

Answer»

AOB is straight line so SUM of all angles in AOB will be EQUAL to 180° applying this 2x+40°+x-20°+x=180° 4X+20 = 180 4x= 160 x = 40° so option d is correct



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