Interior angles in a triangle add up to 180˚. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to a ...

Discusses the properties and types of triangles, explaining that a triangle is a closed figure with three sides and angles. It categorizes triangles into equilateral, isosceles, scalene, obtuse, right ...

to find the values of WX Y and Z when given a included triangle of another triangle there's one thing that you need to know that is the interior angle Sum Theorem basically saying that all the angles ...