Which expressions can be used to compute the approximate area of triangle XYZ? Check all that apply.

Triangle X Y Z has a base of 22 and a height of 23.1. The triangle also has a base of 31.9 and a height of 15.9.

One-half times 22 times 23.1

One-half times 15.9 times 23.1

One-half times 15.9 times 22

One-half times 22 times 31.9

One-half ties 15.9 times 31.9

One-half times 23.1 times 31.9