Question

1. solve for x. 55° x° answer below

Explanation:

Step1: Recognize full angle sum

A full circle equals $360^\circ$.

Step2: Set up angle equation

The three angles sum to $360^\circ$.
$$55^\circ + 90^\circ + x^\circ = 360^\circ$$

Step3: Calculate sum of known angles

Add the given angles.
$$55 + 90 = 145$$

Step4: Solve for $x$

Subtract from $360^\circ$.
$$x = 360 - 145$$

Answer:

$215^\circ$