+0  
 
0
291
1
avatar+2980 

Help.

NotSoSmart  Apr 3, 2017
 #1
avatar+88771 
+1

 

 

4. When two chords intersect each other inside a circle, the products of their segments are equal.

 

So....

 

7 * 4  =  5 * z     divide both sides by 5

 

[7 * 4 ] / 5   = z

 

28 / 5  =   z   =     5 + 3/5   =   5.6 

 

 

5. We can find the radius as follows :

 

6 / sin 120   =  radius / sin 30

 

6 / [  √3 / 2]   =  radius  / [ 1 / 2 ]

 

6 /  √3   =   radius  ≈ 3.46

 

And the diameter is twice this  ≈ 6.92  ≈  6.9

 

 

cool cool cool

CPhill  Apr 3, 2017

47 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.