Is the triangle with side lengths of 18cm, 24cm and 30 cm a right triangle ?

If a, b and c are the lengths of a right triangle and c is the longest side, then:

We have a = 18cm, b = 24cm and c = 30cm. Substitute and check:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb