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Does the theorem from the pythagorean theorem hold true if the triangle is not a right triangle?
No, it does not hold true unless the triangle has an angle of 90 degrees. In a triangle that is not a right triangle, there is no hypotenuse, just three different legs, so you cannot choose the square of one side to be equal to the squares of each of the other two sides.
Why is the sum of a triangle's measures 180 degrees?
because that's all the degrees that three sides of any length put together (a triangle) can hold- any less and it wouldn't even be a polygon, and any more and it would have to have more sides
What is the length of the third side of a triangle who's 2 sides are 7.1 and 6.8?
It depends on the angle between the two lines. You can make the third side approach zero length or approach an infinite length. Take two pencils and hold them together at the ends to make a "V" out of them. Open the V up a bit and then close it up a bit. See how it works? You can vary the angle between the two line segments, and this will vary the length of the length of the third segment.
What is an example of 2 and 3 dimensional shapes?
Well two dimensional means a flat shape, like a square, or a circle. A three dimensional shape means you can hold it, like the 3-D version of a square is a cube, and a 3-D circle is a sphere.
What portions of your face hold symmetry?
forehead
