Question

Find the lenghts of the sides of the rectangle ABCD shown on the coordinate plane. Suppose you double the length of each side. What would be the new coordinates of point C if the coordinate of point A stay the same

Answer 1

Looking at the diagram,

each small box represents one unit

The number of units from A to B is 4 units

The number of units from B to C is 3 units

Thus, the length of rectangle ABCD is 4 units and its width is 3 units.

The original coordinates are

A(0, 0)

B(0, 4)

C(3, 4)

D(3, 0)

If