Question

Which of the following can always be inscribed in a circle?
A. A triangle B. A trapezoid C. A rhombus D. A pentagon

Answer 1

@satellite73

Answer 2

@sweetburger

Answer 3

@satellite73

Answer 4

@mathslover

Answer 5

http://en.wikipedia.org/wiki/Inscribed_figure

Look at the facts about inscribed figures. I'm not sure how one would prove this, though.

Answer 6

pretty sure its a triangle

Answer 7

due to you have an equal radius from the center to every point on the circle you could always make an equilateral triangle

Answer 8

That would be the contraposition of the question. It asks if for every triangle, not for every circle.