the area of the triangle whose vertices are (1, 0, -1 ) (2, 1, 5) and( 2, 1, 2) is _____sq unit is
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u can calculate it by the formula
= 1/2(x1(y2-y3)+x2(y3-y1)+x3(y1-y2))
= 1/2(x1(y2-y3)+x2(y3-y1)+x3(y1-y2))
mirrayees07pb0q8e:
itz also has z coordinate
the formulla you gave is for the 2 coordinates
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