0
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.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoTriangles always have 3 sides. The interior angles add up to 180 degrees.
Wiki User
∙ 14y agoThe sum of the interior angles of an obtuse triangle as with all triangles is 180 degrees.
Wiki User
∙ 13y ago180 degrees
Anonymous
180
Add your answer:
Earn +20 pts
What do sides of a triangle measure up to?
The sides of a triangle add up to the perimeter.
What do all three sides od right triangle add up to?
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.
How many centimeters does each triangle sides add up to?
olp[[[/;.lnbhv cvbnmknhbcddfhmlutgytfghgfbuhhelffiwuyoguaeqr2uq2[
What do all of the sides add up to in a triangle?
The sides can add up to any number. The angles, however, always add up to 180o.
How many equal sides does an equalactual triangle have?
An equilateral triangle has 3 equal sides and 3 equal interior angles that add up to 180 degrees
How many sides can a triangle have?
All triangles have 3 sides and 3 inside angles that add up to 180 degrees
What os a triangle with sides?
A triangle has 3 sides and 3 inside angle that add up to 180 degrees
How do you find the perimeter of a triangle?
you add up the measures of the sides Perimeter=a+b+cAdd up the three sides together
What triangle has no angles or sides?
No triangle. A triangle must have 3 angles that add up to 180 degrees, and three and only three sides, with no sides parallel.
What is the formula to finding a perimeter of triangle?
P = a + b + cyou just add the sides together.Just add up the three sides of the triangle.
How many sides does scale triangle?
All triangles have 3 sides and 3 inside angles that add up to 180 degrees
What do the all the sides add up to in a right triangle?
180
