Mathematics Knowledge Question on Triangles

As an ASVAB tutor, I spend most of my class time on the math sections of the ASVAB.  Mathematics Knowledge is one of the two math sections on the ASVAB.  One of the topics I cover in Mathematics Knowledge is triangles.

Today I present a question on Mathematic Knowledge.

The question is about the area of a triangle.

The question is:

If the area of a triangle is 20 and the base is 5, what is the height?

  1. 4
  2. 8
  3. 12
  4. 15

In order to solve this problem, you need to know the formula for the area of a triangle.

Do you know the formula for the area of a triangle?  I will solve this problem and present the explanation tomorrow.