### Home > GC > Chapter 6 > Lesson 6.2.1 > Problem 6-45

6-45.

The shaded figures below are similar. Homework Help ✎

Solve for

and.Use the proportion

to find . Then write another portion for

. Find the area and perimeter of each figure

Can you use the dotted lines to make right triangles so that you can solve for the lengths of the unknown sides?

Perimeter of smaller figure =

cm area of rectangle:

cm² area of top triangle:

cm² area of bottom triangle:

cm² area of shaded region =

rectangle − top triangle − bottom triangle