Prove that the base angles of an isosceles triangle are congruent. Be sure to create and name the appropriate geometric figures.

Question

anonymous · Answer

two congruent legs of the given isosceles trapezoid are AC and BD.
pair of parallel bases are AB and CD.
congruent lower base angles are <C and <D.
Congruent upper base angles are <A and <B.
Also
<A+<C=180(allied angles)
<B+<D =180(allied angles)

anonymous · Answer

Thank you so much! @Mrs_Lopez  Is that al i have to write for the answer?