Question

10th class maths 7 chapter formulas

Answer 1

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)