The measure of an angle is 4y. find the measure of its complement.

The measure of an angle is 4y. find the measure of its complement.

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  1. The two angel must add to 180 since they are supplements, so
    x+4y=180
    x+4y-4y=180-4y
    x+0y=180-4y
    x+0=180-4y
    x=180-4y
    x=-4y+ 180
    so the final answer is -4y+180
    you welcome

  2. Supplementary angles are two angles that forms a total of 180 degrees. If the measure of an angle is 4y degrees, then the measure of the supplementary angle is 180-4y. That is letter B.

  3. Complementary angles are angles whose measure add up to 90°.

    So, if one angle is 4y, the complementary angle is 90°- 4y. Choice A.

    Complementary angles does not necessarily need to share a line or vertex. As long as both angles have a sum of 90°, then, they are complementary angles.

    Angles who has a sum of 180° are called supplementary angles. 

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