Math CentralQuandaries & Queries


Question from Pam, a parent:

Can you please help me so I can help my daughter the equation is the measure of angle v is 4 time the measure of its compliment what is the measure of angle v when the equation is 4x+x=90

Hi Pam,

You might want to look at our response to an earlier question that explains the use of the term complementary angles.

My interpretation of your question is that the angle has measure $x$ degrees where $4x + x = 90.$ Solve this equation for $x.$ What is the measure of the complement of $x?$ What is 4 times this measure?


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