Area Example 2
Step one: multiply the height and length of the parallelogram
Step 2: Find the line AB's slope and use its rise and run (how far up the y-axis and how far right on the x-axis)
Step 3: then divide the value by 2
Step 4: Repeat steps 2 and 3 for lines BC, CD, AD
Step 5: add up the values from steps 2-4
Step 6: Take the value from step one and subtract it from step 5
Answer:
AB: 1.5
BC: 3
CD: 1.5
DA: 3
All those added up is 9
Height x Length = 20
20-9 = 11
Area = 11