2006-06-07 11:09:04 · 5 answers · asked by jennifer b 2 in Science & Mathematics ➔ Mathematics
Once again you will see that this is a rectangle.
A = length times width
A = 7*2
A = 14
2006-06-07 11:12:49 · answer #1 · answered by MsMath 7 · 7⤊ 2⤋
14 sq. units, I believe...
If you graph the coordinates you'll see that you have a parallelogram. The area for a parallelogram is the length times the height. Fortunately the shape aligns with the x axis so it is easy to figure out both of the values. The length of each side is 7 (from -3 to 4, or -1 to 6). And the height is 2 (1 to 3).
The area is l x h or 7 x 2:
So the quadrilateral (parallelogram) is 14 sq. units.
2006-06-07 18:12:19 · answer #2 · answered by Puzzling 7 · 0⤊ 0⤋
No, I don't think this is a rectangle.
To do this one on GSP, plot the four points, then create a quadrilateral interior. Click "Find area", or something like that.
Without GSP:
Since some points form parallel lines, this is a trapezium.
So, we have to find the lengths of the two parellel sides and the altitude. They are: 7, 7, 2.
So add 7 and 7, multiply by 2, and then divide by 2 again to get your answer of 14.
Note, for both my first answer and second answer, GSP means Geometer's Sketchpad.
2006-06-07 18:17:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Use the distance formula sqrt((X1-Y1)^2+(X2-Y2)^2) for each side and then use the area formula
2006-06-07 19:28:32 · answer #4 · answered by Grant H 2 · 0⤊ 0⤋
this is the 2nd question you asked like this..i have a crazy idea...try solving it by yourself!?!
2006-06-07 18:12:59 · answer #5 · answered by laura 4 · 0⤊ 0⤋