Question

find the measures of the numbered angles in the isosceles trapezoid.

( mangle 1 = square^{circ} )

Explanation:

Step1: Recall isosceles trapezoid property

Base angles of an isosceles trapezoid are congruent.

Step2: Match congruent base angles

The given $47^\circ$ angle and $\angle 1$ are a pair of base angles.

Answer:

$47$