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December 22, 2014

December 22, 2014

Posted by **keisha** on Sunday, November 11, 2007 at 10:53pm.

I think that the answer is 60. I subtracted 3 squared from 5 squared and I got 4. I multipled 4 by 2 and I got 8. I made a formula 3(1/2(8 x 5)) and I got 60 as my lateral area. Is this right?

- math -
**drwls**, Sunday, November 11, 2007 at 11:24pmIf the slant height is 5 and the actual height it 3, then it is 4 m from the center to the middle of any of the squate sides. A side view would be two 3-4-5 right triangles, back to back.

The base length is therefore 8 m. Each trangular side has an area of

Aside = (1/2)8*5 = 20 m^2. The total lateral area (4 sides) would therefore be 80 m^2.

I think you mistake was assuming that there are three triangular sides. There are four

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