Answer:
All angles must add up to 180, so if you add 69+5x+2+9y-3, it is = to 180.
First we can subtract 68 cancelling out 69, 2 and -3 so it is
5x+9y = 112. I assume this is an iscoceles triangle so we already knew 9y - 3 = 69, y=8, x=8
The measure of the angle TRS is 34 degrees
<h3>Line and angles</h3>
The point where two lines meet is known as an angle
Given the following parameters
<QRS = 88 degrees
<QRT = 54 degrees
Using the expression
<QRS = <QRT + <TRS
Substitute the given parameters
88 = 54 + <TRS
<TRS = 88 - 54
<TRS = 34 degrees
Hence the measure of the angle TRS is 34 degrees
Learn more on lines and angles here: brainly.com/question/25770607
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Answer 5 because cos(60) x 10 = gives 5
