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 by Jordan P teacher: Tina Jovanovich

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Review Question Our final exam is Wednesday! Ahhh! And in preparation to that I am going to be posting a review question from one of the chapters we learned about this semester.

In chapter 7 we learned more about areas of formulas. My review question today, will be finding the area of a rhombus (remember that the diagonals of a rhombus bisect each other). The formula for an area of a rhombus is 1/2(d1+d2), d stands for diagonal.

If your given information was that one diagonal was 7cm and half of the other diagonal was 5.5cm, this is how you would solve it:

We know that the other half of the diagonal is 5.5cm, because it gets bisected from the other diagonal.

Now we plug in our given information to come up with 1/2(7+11) = area. Simplify to get 1/2(18) = area.

Now simply multiply by 1/2 or divide by two, and we get 9cm squared = area

Hopefully this helped you! I will be posting another review question soon! Goodbye!

Article posted June 10, 2012 at 10:24 AM • comment • Reads 207 • Return to Blog List