English, asked by krishna62, 1 year ago

plz solve it if u know clear cut answer with short clue

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Answered by king0987

0

in 7th question use formula 1/2(+x1(y2-y3)+x2(y3-y1)+x3(y1-y2). x1-7,y1-10,x2- -2,y2-5,x3-3,y3- -4.

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