Practice problem
Suppose that in isosceles trapezoid ABCDABCDABCD angle AAA is 130∘130^{\circ}130∘. If angle CCC is acute, what is its measure?
60∘60^{\circ}60∘
130∘130^{\circ}130∘
50∘50^{\circ}50∘
Not enough information is given
Type a concept, like “slope” or “photosynthesis”.