+0  
 
-1
280
1
avatar+2980 

Help.

NotSoSmart  Apr 3, 2017
 #1
avatar+88771 
+2

Assuming that both lines drawn to the circle are tangents.......two radii drawn to the points of tangency will form two right angles.......and the central angle intersecting this minor arc will = x°

 

So......this will form a quadrilateral ......and the interior angles of a quadrilateral sum to 360°....so we have

 

[ 90 + 90 + x + x ] =  360

 

180 + 2x   = 360     subtract 180 from both sides

 

2x  = 180      divide both sides by 2

 

x = 90°

 

 

cool cool cool

CPhill  Apr 3, 2017
edited by CPhill  Apr 3, 2017

50 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.