7. Three-Dimensional Figures
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What kind of special angle pairs do you see on the diagram?
x=8 and y=46
Let's take a look at the given diagram.
We can see that the angles whose measures are 5x+6 and 17x-2 form a linear pair. Therefore, the sum of these measures equals 180.
Remove parentheses
Add and subtract terms
LHS-4=RHS-4
.LHS /22.=.RHS /22.
The value of x is 8. Now, notice that the angles whose measures are 5x+6 and y are vertical angles. Therefore, they are congruent. 5x+6= y Let's find the value of y by substituting x= 8 and solving this equation for y.