225 + 135 = 360 The sum of interior angles in a triangle is 180˚. In an equilateral triangle, all three angles are equal to 60˚. To find the missing angles in an equilateral triangle ...

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 ...

Ben Lovejoy \/ How-To Geek<\/p>\n""> This is an equilateral triangle, where the distance between the two stereo speakers, and between each speaker and the listener, is equal. We also angle the ...