Thursday

August 28, 2014

August 28, 2014

Posted by **Temperance** on Monday, June 14, 2010 at 1:05am.

degree of measurement of arc=30

length=1/3xy(pi)

My answer was 8xy.

degree of measurement of arc=40

length=8/9(t)(pi)

My answer was 9t.

degree of measurement of arc=18

length=6(y)pi

My answer was 45y.

These are the questions I missed, along with my answers. I would be grateful if someone could explain what I did wrong and work out the problem, so that I may understand it fully. Cheers!

- Geometry -
**Reiny**, Monday, June 14, 2010 at 6:52amThese questions use the same formula

arc = rØ as we saw in the third part of your previous post.

I will do the first one:

r = ?

Ø = 40(π/180) = 2π/9 radians

arc = (8/9)tπ

r(2π/9) = (8/9)tπ

r = 4t

do the others the same way

**Related Questions**

Geometry - What is the circumference of the circle if the radius is: 5x-My ...

geometry - The radius of a circle is 6cm and the arc measurement is 120 degrees...

Math rem - 2.Find the length of the arc in a circle if the radius of the circle ...

Geometry - Find the arc length, of a 130 degree arc, in a circle with a diameter...

Geometry - Find the arc length, of a 130 degree arc, in a circle with a diameter...

geometry - the arc length of AB is 2^pi ft. find the radius of the circle ABC=43...

geometry - A 45 degree arc of circle D has the same length as a 30 degree arc of...

geomtry - find the arc length of the minor arc withe degree of 120 and a radius...

geometry 3 - Given: Circle O with radius of length 4 units. measurement of arc ...

geometry - Given a circle with the radius of 2, which is the degree measure of ...