SAT Subject Test Mathematics Level 1

Pythagorean theorem: If you know any two sides of a right triangle, you can
find the third side by using the Pythagorean theorem:

(leg 1 )    +   (leg 2 )^2  =   (hypotenuse)^2

For example, if one leg is 2 and the other leg is 3, then

PYTHAGOREAN THEOREM

Equilateral:    Three   equal   sides   and three   60° angles. If  the length

of  one side    is  s,  then

2.

3. Right:   One right   angle.  You can use the legs    to  find    the area: