What is the measure of the complement of an angle that measures 21°?

Question

anonymous · Answer

@satellite73

mathmale · Answer

Alexis:  Let me ask you a question here:  What does "complement of an angle" mean?  Understanding this is the key here.

anonymous · Answer

subtract it from 90

anonymous · Answer

bigger angle/

anonymous · Answer

69

anonymous · Answer

lol not quite
two complimentary angles add up to a right angle,i.e. they add to 90 degrees

anonymous · Answer

so 90-21=69

anonymous · Answer

yeah $90-21=69$

mathmale · Answer

That's right.  I think it important to settle on the meaning of words such as "complement" before attempting to solve the associated problem.

anonymous · Answer

i meant "not quite" to your comment "bigger"

anonymous · Answer

@mathmale  i agree, that is why i looked it up before answering
you can't remember every darned thing...

mathmale · Answer

Since "complementary angles" add up to 90 degrees, the complement of an angle such as 21 degrees is found by subtracting it (21) from 90 degrees.  Answer is ... ??

anonymous · Answer

69

mathmale · Answer

close, but not quite right.   69 what?  I'm not trying to be funny; you do need to include the units of measurement here.

anonymous · Answer

69degrees

mathmale · Answer

Very good.  Thanks for the extra effort.  Good luck to you.