Saturday

October 25, 2014

October 25, 2014

Posted by **sally K** on Monday, April 12, 2010 at 10:24am.

continuation - The radius of the circumscribed circle of the triangle ABC is r cm.

Given that B is a beta-degree angle, find the length of side AC, in terms of r and beta.

- geometry -
**Reiny**, Monday, April 12, 2010 at 11:34amI don't know at what level of geometry you are starting, but a property of the circumscribed circle of a triangle is that

the diameter of the circumcircle is equal to the length of any side of the triangle divided by the sine of the opposite angle

so in your case the diameter is 15, and the required side AC is opposite angle B, so ...

15 = AC/sin49

AC = 15sin49

= appr. 11.32

Now do the same thing in the general case

**Answer this Question**

**Related Questions**

Trignometry pls help - 1. The radius of the circumscribed circle of the triangle...

Math - The radius of the circumscribed circle of the triangle abc is 15cm. given...

geometry - 1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm ...

geomery - 1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm ...

geometry - Open that link please please help me with my assignments 1. in the ...

GEOMETRY URGENT PLEASE - (imageshack)(.)us(/)photo (/) my-images (/)42(/)2vja. ...

geometry PLEASE - imageshack(.)(us)/photo/my-images/42/2vja.jpg/ Open that link ...

GEOMETRY - Here are the figures. file:///C:/Users/ALIZAJOY/Pictures/Untitled....

geometry - Basic Geometry 1. Find the perimeter of a rectangle 19 cm long by 27....

geometry - (imageshack)123 (.)us(/)photo 123 (/) my-images 123 (/)42(/) 123 ...