10th class maths 7 chapter formulas
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Distance formula
√(x2-x1)^2 + (y2-y1)^2
Section formula
x=mx2+nx1/m+n
y=my2+ny1/m+n
Mid point formula
(x1+x2/2,y2+y1/2)
Area of triangle
1/2{x1(y2-y3)+x2(x3-x1)+x3(x1-x3)}=0
Centroid of triangle
(x1+x2+x3/3,y1+y2+y3/3)
√(x2-x1)^2 + (y2-y1)^2
Section formula
x=mx2+nx1/m+n
y=my2+ny1/m+n
Mid point formula
(x1+x2/2,y2+y1/2)
Area of triangle
1/2{x1(y2-y3)+x2(x3-x1)+x3(x1-x3)}=0
Centroid of triangle
(x1+x2+x3/3,y1+y2+y3/3)
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