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lexiamee
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dw:1365099832857:dw

lexiamee
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what is the area of the triangle ? How do I do this ?

klimenkov
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What is it?
dw:1365100354905:dw

lexiamee
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thats 81 degress

OhMaiGosshh
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The area of a triangle is 1/2 x base x height. So plug all the information in, and you'll get 1/2 x 8 x 12 = 48 cm

lexiamee
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47.4 cm2
94.8 cm2
7.5 cm2
303.1 cm2
these are my choices

klimenkov
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\(\frac12\cdot12\cdot8\cdot\sin 81^\text{o} \)

lexiamee
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I got 486

klimenkov
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Calculate again.

lexiamee
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i did

klimenkov
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What is an answer?

lexiamee
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i dont know

klimenkov
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Can you use a calculator?

lexiamee
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yes . I did

klimenkov
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Please, compute the expression I wrote above using your calculator.