It's possible to demonstrate and prove mathematically that the angle sum of every triangle is 180 degrees. The techniques used are useful for solving all kinds of other geometry problems too.

If the triangles are congruent and each geometric figure has interior angles of equal measure, you can write the following pairs: In geometry, the following congruent angles theorems dictates the ...

You'll like draw a perfect square or rectangle by drawing congruent angles to form the box, and then congruent triangles ... RPQ In geometry, the following congruent angles theorems dictates ...

What it means is that in a right triangle (where one angle equals 90°), the sum of the squares of two sides equals the square of the hypotenuse (the longest side).