Use the figure to find the measures of the numbered angles.

Every numbered angle is 90 degrees

Step-by-step explanation:

Using the right angle we are given, linear pairs and a vertical angle give us that angles 1, 2, and 3 are also right angles.

Then using corresponding angles we can find that one of the 4-7 angles. From there we can use linear pairs the same as the first step.

d. vertex

step-by-step explanation:

y=sec x is the correct answer

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