### Home > MC2 > Chapter 9 > Lesson 9.3.3 > Problem 9-106

9-106.

You can identify this figure as a square, which means all the side lengths have equal values.

*x*^{2} = 225

Solve for *x*.

Area = (side)^{2}

121 cm^{2}

Area = length (width)

100 = 5*w*

Solve for *w*.

See (a).