Question 818002:  The measures of the angles of a triangle are in the extended ratio 7:9:10. What are the measures of the angles of the triangle. Can someone help me with this?? 
 Answer by richwmiller(17219)      (Show Source): 
You can  put this solution on YOUR website! angles of a triangle add up to 180
 
a=7x, 
b=9x, 
c=10x, 
7x+9x+10x=180 
26x=180 
13x=90 
x=90/13 
7*90/13= angle a 
9*90/13= angle b 
10*90/13= angle c 
a = 630/13,   b = 810/13,   c = 900/13,   x = 90/13 
a=48.462,   b=62.308,   c=69.231,   x=6.9231 
 
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