### Home > INT3 > Chapter 8 > Lesson 8.1.1 > Problem 8-18

8-18.

Match the law, equation, or formula in Column I with its corresponding name from Column II. Homework Help ✎

Column I

Column II

a.

*x*=1.

Law of Cosines

b.

2.

Area of a triangle

c.

*c*^{2}=*a*^{2}+*b*^{2}3.

Pythagorean Theorem

d.

*c*^{2}=*a*^{2}+*b*^{2}– 2*ab*cos(*C*)4.

Quadratic Formula

e.

*A*=(ab sin *C*)5.

Law of Sines

e: 2

If you do not have the rest of these memorized, work on doing so.