# Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises: 31

90- x$^{\circ}$

#### Work Step by Step

1. Given that angle $\theta+x^{\circ}=90^{\circ}$ 2. $\theta= 90^{\circ}-x^{\circ}$ is our angle.

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