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 This blog is for Miss Jovanovich's algebra and geometry classes to share ideas, ask questions, and reflect on what skills and topics we are studying. If we are lucky, we might even get a chance to connect with other students studying the same stuff.
 by Amanda L teacher: Tina Jovanovich

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Review Question #2

Hello everyone!

Firstly, I would just like to explain that last week Blogmeister was experiencing some technical difficulties, so I was unable to post at that time. The post from both then and the most recent one should be uploaded now.

Anyways, this week is the beginning of finals for my school! I am very nervous because I've never taken finals before, and I'm not sure what to expect. Wish me luck!

In order to review once again for geometry, I am posting another review questions below. I chose this particular one because I find this area formula hard to remember sometimes, because it doesn't involve side lengths, rather, diagonal lengths.

For this problem, there was a rhombus shown with diagonals of 21 ft and 18 ft. The instructions were to find the area, and the possible answers were as shown:

a) 378 sq. ft

b) 189 sq. ft

c) 162 sq. ft

d) 27(square root of)85 sq. ft.

I knew that the formula for the area of a rhombus is 1/2d1*d2, so I substituted in the diameter lengths:

A = 1/2 * 21 * 18 = 189

With that equation, I was able to find that the area was 189 sq. ft., or answer b.

I hope this has been a helpful review question! Have a great week! (:

Article posted June 10, 2012 at 08:02 PM • comment • Reads 212 • see all articles