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I need help with this
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I need help with this

I need help with this-example-1
User Alexander Leonov
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1 Answer

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1/2 x b x h = 189
1/2 x 21 x h = 189
21 x h = 189 x 2
h = 378 / 21
h = 18 units
User Farrukh Tulkunov
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