Which of the following are true in spherical geometry? Check all that apply.
A. All right angles are still equal.
B. A circle can be drawn with any point at its center.
C. The sum of the measures of the angles of a triangle is greater than 180 degrees.
D. There are many straight lines between any two nonpolar points

I'm thinking the answer A, B, & D!

Question

Which of the following are true in spherical geometry? Check all that apply. 
A. All right angles are still equal. 
B. A circle can be drawn with any point at its center. 
C. The sum of the measures of the angles of a triangle is greater than 180 degrees.
D. There are many straight lines between any two nonpolar points

I'm thinking the answer A, B, & D!

anonymous · Answer

so A is true, B is true, C can't be true because a triangle cant be more than 180 degrees and D is true, so you are correct :D

anonymous · Answer

If it is a circle on the surface of a sphere,then c is absolutely true.

anonymous · Answer

thanks for confirming ! :)

anonymous · Answer

@surjithayer isn;t a sphere also a circle ?

anonymous · Answer

when we cut a sphere  by a plane we get a circle.

anonymous · Answer

examples of sphere are lemon,tennis ball etc.

anonymous · Answer

A and B are not true in spherical geometry, C and D are though. I just did this same problem