### Home > CC1MN > Chapter 2 > Lesson 2.1.2 > Problem2-16

2-16.

Hector measured the area of his desktop by covering it with quarters ($25¢$ coins). Can he find the area using these circular units of measure exactly, or will he have to estimate? Explain your answer.

Circular units leave gaps in the area. Will using quarters give an exact measurement or an estimate?