# Chapter 1 - Trigonometric Functions - Section 1.2 Angle Relationships and Similar Triangles - 1.2 Exercises - Page 20: 73a

$\frac{1}{4}$ of the thumb would cover the moon.

#### Work Step by Step

The thumb is 2 arc degrees or 120 arc minutes, therefore, it is $\frac{31}{120}$ or $\approx$ $\frac{1}{4}$.

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