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#1 2008-10-23 11:28:35

Evan
Guest

Geometry

Hey, I was wondering if I could get some help answering one Geometry question that's been stumping me.

Here's the question:

Angle A is a supplement of the angle B and angle C is a complement of the angle B. What is the difference between angles A and C?



Thanks in advance!

-Evan

#2 2008-10-24 00:08:15

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: Geometry

One of the angles is equal to 90-A, and the other is 180-A (by definitions of supplement and complement).

Therefore, the difference between them is (180-A) - (90-A) = 180-A-90+A = 90.


Why did the vector cross the road?
It wanted to be normal.

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