Question

an exterior angle of a triangle is of measure 70 degree's and one of interior angle is 30 degree's.Find the measure of other interior opposite angle
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Answer 1

Answer:

let the triangle be abc and exterior angles be bcd

Step-by-step explanation:

by remote interior angles theorem

/ a+/b=/bcd

/a+30*=70*

/a=70-30

/a=40*