Determine the measure of

CD
from the diagram below.

m(arc CD) = 112°

Step-by-step explanation:

Use the property of intersecting chords and angles between these chords,

m∠CED =

m∠CED + m∠AED = 180°

80° + m∠CED = 180°

m∠CED = 100°

Now substitute the measure of angle CED and arc AB in the expression,

100° =

200° = 88° + m(arc CD)

m(arc CD) = 112°

whatare you sayig

step-by-step explanation:

thats not a system of equations, that is a solution