Help me please. Medal and fan :)
Question here.
@Zarkon
@Aveline
What's a major arc? What's a minor arc?
circle having measure greater than or equal to and circle having measure less than or equal to
Ummm...what's the difference between a major and minor arc? Which one is greater than 180 degrees?
Major is greater then and minor is less than.
Right. What are some examples of minor arcs in the picture?
28 and 95 and 57.
Ab is greater than.
Examples of minor arcs in this picture include: ED, EDC, DC, DCB, CB, BA, and AE Notice that AB, or BA is not a major arc. Remember, a major arc needs to be greater than 180 degrees, essentially taking up most of the circle. See the interactive circle on this web page: http://www.mathopenref.com/arcminormajor.html Can you figure out any major arcs? There are a lot of options that you can choose from.
Ab and AC and EB and EC is that some?
No, those are all minor. Did you check out the link I posted?
Oh ok i got it CA , CE , EC ??
CB
CA is exactly 180 degrees and cuts the circle into two semicircles. Therefore, it is neither a major nor minor arc. CE and EC are the same, they are minor arcs. CB is also minor. One example of a major arc in this picture is CDEAB. Remember to use at least three points on the arc to avoid confusion. Can you think of another major arc?
ABDC?
wait i messed up lol
BCDEA
Right
Do you need help figuring out its angle measure?
Yeah if u aint busy
Ok. We know the angle measures of BC, CD, and DE. We need to find the angle measure of EA. We know that CDEA divides the circle into two halves. It has a measure of 180 degrees. 180 degrees = 95 degrees + 28 degrees + the measure of EA (in degrees) Can you simplify the equation and solve for the measure of EA?
is EA 57 to they look the same
Right. So now we just add up the angle measures: 57 (BC) + 95 (CD) + 28 (DE) + 57 (EA) = 237 degrees
Ok cool.
that the answer?
BCDEA is a major arc with a measure of 237 degrees
Ok whats next?
I mean how do i write it all as the answer?
Name a minor arc and give its measure: CD is a minor arc with a measure of 95 degrees. Name a major arc and give its measure: BCDEA is a major arc with a measure of 237 degrees.
Ok thanks ill medal u :)
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