Best Answer

The three interior angles of a plane triangle add up to 180 degrees, or pi radians.

If the sum is not 180° you are not in Euclidean space.

If the three angles of a triangle add up to more than 180° then you are in a spherical space, if the sum is less than 180° it is a hyperbolic space.

Example:Think of a triangle on the Earth with one corner at the North Pole, the other corners on the Equator 90° apart (say at 0° [west of Nigeria in Africa] the other at 90° W [West of Ecuador in South America]).Each of these angles is 90° so the sum is 270° -

The surface area of the triangle is one eighth of the surface of the globe. But it is a triangle (on a sphere)!

On a plane, always 180 degrees. If the sum is not 180° you are not in Euclidean (flat) space.

If the three angles of a triangle add up to more than 180° then you are in a spherical space, if the sum is less than 180° it is a hyperbolic space.

Example:Think of a triangle on the Earth with one corner at the North Pole, the other corners on the Equator 90° apart (say at 0° [west of Nigeria in Africa] the other at 90° W [West of Ecuador in South America]).

Each of these angles is 90° so the sum is 270° -

The surface area of the triangle is one eighth of the surface of the globe. But it is a triangle (on a sphere)!

The sum of the internal angles of any triangle is 180 degrees.

More answers

Triangles always have 3 sides. The interior angles add up to 180 degrees.

The sum of the interior angles of an obtuse triangle as with all triangles is 180 degrees.

180 degrees

Lvl 1

180

Q: How many sides does the triangle add up to?

Write your answer...

Submit

Still have questions?

Related questions

The sides of a triangle add up to the perimeter.

The sides don't add up to anything but the angles should add up to 180 degree to form right triangle or any other triangle.

olp[[[/;.lnbhv cvbnmknhbcddfhmlutgytfghgfbuhhelffiwuyoguaeqr2uq2[

The sides can add up to any number. The angles, however, always add up to 180o.

An equilateral triangle has 3 equal sides and 3 equal interior angles that add up to 180 degrees

All triangles have 3 sides and 3 inside angles that add up to 180 degrees

you add up the measures of the sides Perimeter=a+b+cAdd up the three sides together

A triangle has 3 sides and 3 inside angle that add up to 180 degrees

No triangle. A triangle must have 3 angles that add up to 180 degrees, and three and only three sides, with no sides parallel.

P = a + b + cyou just add the sides together.Just add up the three sides of the triangle.

All triangles have 3 sides and 3 inside angles that add up to 180 degrees

180