 ## Do the angles in a triangle always add to 180?

A triangle’s angles add up to 180 degrees because one exterior angle is equal to the sum of the other two angles in the triangle.

In other words, the other two angles in the triangle (the ones that add up to form the exterior angle) must combine with the third angle to make a 180 angle..

## What is the sum of all three angles in a triangle?

The sum of the three angles of any triangle is equal to 180 degrees.

## Which set of angles could be the interior angles of a triangle?

Answer: 19° ,70° and 91° only one represent the interior angle of triangle.

## What is the sum of a triangle sides?

The sum of all internal angles of a triangle is always equal to 1800. This is called the angle sum property of a triangle. The sum of the length of any two sides of a triangle is greater than the length of the third side. The side opposite to the largest angle of a triangle is the largest side.

## What are the angles in a isosceles triangle?

In an isosceles triangle, there are two base angles and one other angle. The two base angles are equal to each other. So say you have an isosceles triangle, where only two sides of that triangle are equal to each other. And then you have 36 degrees as one of your base angles.

## What are alternate interior angles equal to?

The angles are positioned at the inner corners of the intersections and lie on opposite sides of the transversal. Alternate interior angles are equal if the lines intersected by the transversal are parallel. Alternate interior angles formed when a transversal crosses two non-parallel lines have no geometrical relation.

## What should the angles of a triangle add up to?

The angles in the triangle you drew all add up to 180°. Remember, all angles on a straight line add up to 180°.

## What is the sum of interior angles in a triangle?

180°Triangle/Sum of interior angles

## How do you find three angles of a triangle?

“SSS” is when we know three sides of the triangle, and want to find the missing angles. To solve an SSS triangle: use The Law of Cosines first to calculate one of the angles. then use The Law of Cosines again to find another angle.

## What is the formula for interior angles?

An interior angle is located within the boundary of a polygon. The sum of all of the interior angles can be found using the formula S = (n – 2)*180. It is also possible to calculate the measure of each angle if the polygon is regular by dividing the sum by the number of sides.

## Can a triangle have two right angles?

Answer and Explanation: Because of the fact that the sum of the three interior angles of a triangle must be 180 degrees, a triangle could not have two right angles.