### Home > CC3 > Chapter 4 > Lesson 4.1.7 > Problem4-71

4-71.

This problem is a checkpoint for area and perimeter of circles and complex figures. It will be referred to as Checkpoint 4. Homework Help ✎

Find the area and perimeter or circumference of each figure.

1. Circle with radius $3$ cm.

1. Circle with diameter $10$ feet.

1. Only the shaded region (each sector has equal area).