A triangle has corners at #(4, 4 )#, ( 3, -2)#, and #( 5, -3)#. If the triangle is reflected across the x-axis, what will its new centroid be?
1 Answer
Dec 22, 2017
Explanation:
#"the coordinates of the centroid are the average of the"#
#"coordinates of the vertices"#
#"centroid "=(1/3(4+3+5),1/3(4-2-3))#
#color(white)("centroid ")=(4,-1/3)#
#"under a reflection in the x-axis"#
#• " a point "(x,y)to(x,-y)#
#rArr"new centroid "=(4,1/3)#
