We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
202
3
avatar+27 

If a triangle has angles whose measures are 55 degrees and 80 degrees, what is the measure of the third angle? 

 Aug 17, 2018
 #1
avatar+101796 
+2

The sum of the interior angles of a triangle  = 180°

 

Let  x  be the unknown angle...so we have...

 

55 + 80  +  x  = 180

 

135 + x  = 180     subtract  135 from both sides

 

x  = 45°

 

 

cool cool cool

 Aug 17, 2018
 #2
avatar+27 
+2

Thank you!!

 Aug 17, 2018
 #3
avatar+101796 
+1

Glad to  help....where I can....

 

 

cool cool cool

CPhill  Aug 17, 2018

12 Online Users

avatar