Thursday, November 4, 2010
This is a right triangle because it has a right angle (90 degrees).
A triangle has 3 sides. The horizontal and vertical line are the legs.
The diagonal line is called the hypotenuse.
Side b is 3 cm, side a is 4 cm an and side c, the hypotenuse is unknown.
To find how long the hypotenuse is you can measure it with a ruler or use a formula called Pythagorean Theorem.
The formula is a squared + b squared = c squared.
This is how you would use the formula with this right triangle-
a squared + b squared = c squared
(4 cm squared) + (3 cm squared) = c squared
16 cm squared+ 9 cm squared = c squared
25 cm squared = c squared (with square root over both of them
5 cm = c