Exercise 5 Page 534

We can find the area of a triangle. We will use the following formula to do it. A=1/2bh In this formula, b is the length of the base and h is the height. For our triangle, we will substitute b= 3.2 for the base and h= 4.2 for the height into the formula to calculate A.

A=1/2bh

SubstituteII

b= 3.2, h= 4.2

A=1/2( 3.2)( 4.2)

Multiply

Multiply

A = 1/2(13.44)

MoveRightFacToNumOne

1/b* a = a/b

A = 13.44/2

CalcQuot

Calculate quotient

A = 6.72

The area of the triangle is 6.72yd^2.