# Basic Math Examples

, ,

Step 1

Use the formula to find the area of the triangle with points , , .

Step 2

Step 2.1

Substitute the values of the first point into the formula.

Step 2.2

Substitute the values of the second point into the formula.

Step 2.3

Substitute the values of the final point into the formula.

Step 3

Step 3.1

Simplify the numerator.

Step 3.1.1

Add and .

Step 3.1.2

Multiply by .

Step 3.1.3

Multiply by .

Step 3.1.4

Add and .

Step 3.1.5

Multiply by .

Step 3.1.6

Subtract from .

Step 3.1.7

Multiply by .

Step 3.1.8

Add and .

Step 3.1.9

Subtract from .

Step 3.1.10

The absolute value is the distance between a number and zero. The distance between and is .

Step 3.2

Divide by .