Friday

October 24, 2014

October 24, 2014

Posted by **Dillon** on Friday, June 22, 2012 at 8:15am.

- Geometry -
**Reiny**, Friday, June 22, 2012 at 8:40amconsider a triangle on a globe

so that one vertex is at the north pole, another on the intersection of the equator and the prime meridian, and the third on the intersection of the equator and the 90° meridian.

Wouldn't the angle at the pole be 90° as well as the two angles on the equator?

Thus the sum of the angles of the triangle would be 270°

Can you set up some kind of similar argument for a pentagon?

- Geometry -
**Anonymous**, Monday, June 16, 2014 at 1:55pmIn Euclidean geometry, the sum of the measures of the interior angles of a pentagon is 540°. Predict how the sum of the measures of the interior angles of a pentagon would be different in spherical geometry.

**Answer this Question**

**Related Questions**

Math - In euclidean geometry, the sum of the measures of the interior angles of ...

Geometry - What is the sum of the measures of the interior angles of a convex ...

math - find the sum of the measures of the intieior angles of each polygon. -...

geometry - If the sum of the measures of the interior angles of a convex n-gon ...

geometry - find the sum of the measures of the interior angles of a 13-gon

Math - The sum of the degrees of the interior angles of a triangle is _____ ...

Geometry - 1. How many sides does a regular polygon have if one exterior angle ...

geometry - the measures of the interior angles of a pentagon are 2x, 6x, 4x-6, ...

geometry - how can we prove that an exterior angle of a triangle has measure ...

geometry - 1. the sum of the interior angle measures of a convex dodecagon. 2. ...