Tina plans to make wooden frames to put her two triangular art pieces in how much wood would she need for triangle dfg ? enter your answer in the box. (they are perimeter)

The answer is actually 54. I just took the test and put in 21 and it was wrong.

All of the following are rational numbers except : 3.14159...

Rational number--

A number is said to be a rational number if it could be expressed in the form of p/q where p and q are integers and q is not equal to zero.

Also, the decimal expansion of such a number is terminating or repeating decimal.

Irrational number--

A number is said to be a rational number if it could not be expressed in the form of p/q where p and q are integers and q is not equal to zero.

Also, the decimal expansion of such a number is non-terminating or non-repeating decimal.

1)

                    -16

The number is a rational number.

Since it satisfies the condition of rational number.

2)

               3.14159

The number is a irrational number.

Since the decimal expansion is non-terminating and non-repeating decimal.