SAT Subject Test Mathematics Level 2

THREE SPECIAL TRIANGLE TYPES

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

PYTHAGOREAN THEOREM

For all right   triangles:

1. Isosceles:   Two equal   sides   and two equal   angles.

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:

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