Posted by sarah on Thursday, February 5, 2009 at 9:44pm.
Find the longest side of triangle ABC, if measurement A=70, measurement B=2x10, and measurement C=3x+20.

geometry  Chopsticks, Thursday, February 5, 2009 at 10:04pm
5x10=80 x=16
B=2(16)  10 = 22
C= 3(16)+20 = 68
I'm not sure if that's right or not.

geometry  Reiny, Thursday, February 5, 2009 at 10:58pm
I will assume that by "measurement A=70" you are referring to angle A
then 70 + 2x10 + 3x+20 = 180
5x = 100
x = 20
then angle B = 30 and
angle C = 80
knowing that in any triangle, the largest side is opposite the largest angle, the largest side must be opposite angle C, which would be AB

geometry  DM, Saturday, February 14, 2009 at 10:52am
Find the pattern
Give the formula
0  8
1  11
2  14
3  17
4 
5 
50 
n 
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