Question

explore the properties of angles formed by two intersecting chords.
√1.the intersecting chords form vertical angles. if m∠deb = 105°, then m∠aec = 105°.

1. find the sum of the angle measures: m∠deb + m∠aec =

check

Explanation:

Step1: Identify given angle - measures

Given \(m\angle DEB = 105^{\circ}\) and \(m\angle AEC=105^{\circ}\)

Step2: Calculate the sum

We need to find \(m\angle DEB + m\angle AEC\). Substitute the values: \(105 + 105\)
\[105+105 = 210\]

Answer:

\(210\)