MDE = 128 and mBC = 63. Find mZA. (The figure is not drawn to scale.)​

We know that the measure of a whole circle = 360°

So the measure of central angle;

360 - (128 + 63)

360 - 191

169

Measure of angle A would be half the measure of the central angle so;

169/2

m∠A = 84.5°

Hope this helps!

(-5,-28)

i graphed to on desmos.