2007-02-04 20:45:56 · 16 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Do you have a protractor? Use it as a reference as you read this...
It looks like a "D", right? Now, set it on a blank piece of paper with the flat side facing YOU, and the curved (half-circle) side facing AWAY from you.
Draw a flat line along the straight edge. It will be horizontal to you. In other words, it will look like this:
_____
now, keep the protractor in place, don't move it at all, and trace from the right side of the protractor to the left, along the CURVED part. Stop when you get halfway between the left and right (in other words, in the middle of the protractor. It says "90" here, right? That means that your pen/pencil has travelled 90 degrees. So keep going until you get clear to the left side. Now you have made a half-circle, right? That is 180 degrees.
So, you went 90 degrees, and that was half of a half circle. What is half of a half? One quarter, or 1/4. If 1/4 of the way around a circle equals 90 degrees, and HALFWAY around a circle (a half-circle) is 180 degrees, then what will 3/4 of the way around a circle be?
Just add another 90 degrees, which gives you 270 degrees. Now you are almost at a complete circle.
Since you are already 3 quarters of the way there, you just need to go 1/4 more to complete the circle. You already know that 1/4 of the circle equals 90 degrees, and 3/4 of the circle is 270 degrees, so simply add 3/4+1/4, or...
270 degrees + 90 degrees=
270+90=360, so the answer to your question is 360 degrees in a complete circle.
Hope this helps you understand angles a little better.
2007-02-04 21:10:15 · answer #1 · answered by Anonymous · 0⤊ 1⤋
A circle consists of 360 degrees
2007-02-05 07:36:21 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
A circle has 360 degrees. Degrees measure how wide an angle is. A right-angle is 90 degrees, so turning 4 right angles would be a full circule, or 360 degrees.
2007-02-05 04:49:25 · answer #3 · answered by Anonymous · 0⤊ 0⤋
A complete circle is 360 degrees in circumfrance. A half-circle is 180 degrees.
2007-02-05 04:50:09 · answer #4 · answered by NoName 3 · 0⤊ 0⤋
a circle has 360 degrees in it. each of its 4 quadrants measures 90 degrees. SO basically its () multiplied by 4 and you get 360 degrees. Thats where yahoo 360 probably got its name from haha...
2007-02-05 04:49:36 · answer #5 · answered by swoosh 2 · 0⤊ 0⤋
360
2007-02-07 23:56:33 · answer #6 · answered by cutest pooky 3 · 0⤊ 0⤋
360
2007-02-05 04:49:53 · answer #7 · answered by parth s 1 · 0⤊ 0⤋
360
2007-02-05 04:48:40 · answer #8 · answered by lou b 6 · 0⤊ 0⤋
360
2007-02-05 04:48:21 · answer #9 · answered by david UK 4 · 0⤊ 0⤋
360
2007-02-05 04:48:13 · answer #10 · answered by Anonymous · 0⤊ 0⤋