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Use exterior angles to solve for interior angles.
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Use exterior angles to solve for interior angles.

Use exterior angles to solve for interior angles.-example-1
User Vmkcom
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6 votes

Answer:

I could be mistaken but I believe that x= 42.5

Explanation:

To find this, you solve for 4x+10=180.

This is because the total angle measure of line RD should be 180 degrees.

When you solve this equation, you get 42.5 for X

User Siddharth Kaul
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