A triangle has base 8 1/4 feet and height 6 1/2 feet. Find the area of the triangle as a mixed number.

Question

A triangle has base 8 1/4 feet and height 6 1/2 feet. Find the area of the triangle as a mixed number.

Answer 1

Of course, the formula for the area of a triangle is 

 

1/2 * base * height

 

In this problem, A = 1/2 * (8 1/4) * (6 1/2)

 

We could convert each of the mixed numbers to improper fractions. 

 

8 1/4 = 33/4

 

6 1/2 = 13/2

 

Therefore, the area can now be computed by multiplying 1/2 * 33/4 * 13/2 = 429/16

 

Can you now change this improper fraction back to a mixed number?