Given ab | | cd
ad | | cb
prove ad=cb

which of the following statements would complete the proof?
a. < 1= < 2 and < 3= < 4
b. < 1= < 3 and < 2=< 4
c. < 1= < 4 and < 2=< 3

1. are the triangles similar and if so why? what is the value of x? show your work.

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.