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Finding an angle measure in a figure

Finding an angle measure in a figure-example-1
User TheClassic
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Answer: x = 30º

Explanation:

Straight angles are always 180º. We are told MKL is 150º, so JKM must be 180 when added to 150.

To view it in a more "algebraic way," this can be represented as 150 + x = 180. To isolate the variable (x), subtract 150 from both sides. 150 - 150 = 0, so that cancels out, and 180 - 150 is 30. So, we are left with x = 30, and the equation is solved.

In a more simple and faster way, to find JKM, subtract 180-150. 180 - 150 = 30, therefore JKM is 30º

User Atarah
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