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Pls help and explain how gladly help full

Pls help and explain how gladly help full-example-1
User Sudoremo
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1 Answer

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Well, the formula for a triangle is base times height times 1/2. In this case it would be 21x30. That equals 630. Then, you divide 630 by 2 which is 315. Your answer would be 315 squared.
User Steven Barnett
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