Question

find the measures of the numbered angles in the isosceles trapezoid. m∠1 = □°

Explanation:

Step1: Recall isosceles trapezoid property

In an isosceles trapezoid, base - angles are equal.

Step2: Identify base - angles

The angle of 55° and ∠1 are base - angles of the isosceles trapezoid.

Answer:

55