Question

graph and find the perimeter of quadrilateral BEAR B(-2,3), E(1, 4), A( 2,1), R( -1,0)

Answer 1

d(BE)=squareroot (x2-x1)^2+(y2-y1)^2
=square root(1--2)^2+(4-3)^2
=square root(3)^2+(1)^2
=square root9+1
=square root10

d(EA)=square root(2-1)+(1-4)
=square root(-1)^2+(-3)^2
=square root1+9
=root10

d(AR)=root(-1-2)+(0--1)
=root(-3)+(-1)
=root9+1
=root10

d(BR)=root(-1--2)+(0-3)
=root(-1)+(-3)
=root1+9
=root10
perimeter of quadrilateral=BE+EA+AR+RB
=root10+root10+root10+root10
=root40