Question

what is the measure of angle A if the other angles of quadrilateral are 83°,95°and 109°​

Answer 1

Hey mate here is you answer

The sum of the angles of quadrilateral are 360°

That is, Angle A + Angle B + Angle C + Angle D =360°

Angle A+83+95+103=360

Angle A +281°=360°

Angle A=360-281

Angle A=78°..

Hope it helps you ✌✌