Posted by **sarah** on Thursday, February 5, 2009 at 9:44pm.

Find the longest side of triangle ABC, if measurement A=70, measurement B=2x-10, and measurement C=3x+20.

- geometry -
**Chopsticks**, Thursday, February 5, 2009 at 10:04pm
5x-10=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 + 2x-10 + 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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