The area of a triangle is given by A = one half times b times h. If A = 24 and b = 6, what is h?

Correct answer to question 21 (Mathematics Knowledge): 8

Method

Rearrange the formula before substituting: multiplying both sides by 2 and dividing by b gives h = 2A / b. Then h = 48 / 6 = 8. Forgetting the factor of 2 gives 4.