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2015-05-20T20:23:29+08:00

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Area= \frac{base*altitude}{2} = \frac{17*26}{2} = \frac{442}{2} =221dm^2
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2015-05-21T14:26:33+08:00

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The area of the triangle is:
A=0.5bh
simply the base or the side that is formed with a 90 degree by the altitude.

substitute:
A=0.5(26 dm)(17 dm)
A=(13 dm)(17 dm)
A=221 dm²

Hope this helps =)
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