there are 180 degrees in a triangle. So, what you do is add those two numbers and subtract them from 180! your welcome. . .
It has a 90 degree angle..
To find the area of a triangle, you have to multiply the base of the triangle and the height of the triangle, then divide the product of those numbers by two.
It is easy to draw an equilateral triangle without a protractor. That gives a 60 degree angle. It is then simply a matter of bisecting the 60 degree angle, using an unmarked rule and compass, to get a 30 degree angle.
right angle!
The 90 degree angle in a right angle triangle is opposite its hypotenuse.
By using trigonometry
You cannot. An angle of a triangle can have any value between 0 and 180 degrees.
Three numbers may or may not define a right triangle. Also, the answer will depend on whether the three numbers are the lengths of sides or the measures of angles.
To find the degree of angle of a side of a triangle, a protractor is needed to measure the angle. Place the '0' on the protractor on the point of the angle and look at the top part to determine degree of angle. To measure the length of a triangle side, a simple ruler can be used to measure the length.
Yes. I think they're in the 3rd diagonal of the triangle. Basically, its how many numbers you need to make a geometrically correct triangle: 1, 3, 6, 10......
Blaise Pascal invented the Pascaline and Pascal's Triangle. Pascal's Triangle was a triangle, which started of with 1. The number underneath is worked out by adding the two numbers above it together. Using Pascal's Triangle, we can find many patterns, including Triangle Numbers.
Same as you would find the area of any triangle A = (1/2)[base][height]