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9 answers

How about 20 - 40 - and 120 degrees............

2007-02-19 16:21:19 · answer #1 · answered by Anonymous · 0 0

The way you solve this problem is by creating some equations. Angle A will be the smallest Angle B will be another angle Angle C will the last angle Since an triangle has 3 angles and a total of 180 degrees, we know that A+B+C=180 Angle B is 20 degrees more than the smallest angle A. So B=A+20 Angle C is 2 times the size of A. So C=2A Now we will take what B and C equal and place them in the original equation A+A+20+2A=180 This simplifies to: 4A+20=180 Subtract 20 from each side 4A=160 divide each side by 4 A=40 Now that we know that A, the smallest angle is 40 degrees, we take A and put it into the equations we got for B and C. B=A+20 B=40+20 B=60 C=2A C=2*40 C=80 Angle A is 40 degrees Angle B is 60 degrees Angle C is 80 degrees

2016-03-29 03:43:46 · answer #2 · answered by Anonymous · 0 0

I don't know how to do degrees on my computer, but the angles (from smallest to largest) measure: 20 degrees 40 degrees and 120 degrees.

smallest angle = x
x+2x+6x= 180 because there are 180 degrees in every triangle
9x=180 combine like terms
x=20 divide
x = 20 smallest angle
2x = 40 middle angle
6x = 120 largest angle

2007-02-19 16:22:44 · answer #3 · answered by Anonymous · 0 0

1 angle equal to 20(small angle) and twice that is 40(second angle) and 20(small angle) times 6 equals to 120 and add all the angles and it equals to 180 and any triangle equals 180

2007-02-19 16:22:06 · answer #4 · answered by punkrocktillidie 2 · 0 0

1x +2x+6x = 180
9x = 180
x = 20
2x = 40
6x = 120
20 is the smallest. 2 times that smallest is 40 and 6 times the smallest is 120. Together it is 180.

2007-02-19 16:20:52 · answer #5 · answered by Smiles :) 2 · 0 0

And the sum of all the angle is 180º, so add up all the angles and solve for the smallest angle

2007-02-19 16:20:44 · answer #6 · answered by arbiter007 6 · 0 1

Well think about it... 180 degrees is a triangle...
let's do some algebra
180=x+2x+7x
180=10x
18=x
x=smallest angle.. and you can do the rest

2007-02-19 16:20:35 · answer #7 · answered by Anonymous · 0 3

20 degrees
40 degrees
120 degrees

2007-02-19 16:21:41 · answer #8 · answered by rho b 2 · 0 0

a+b+c=180
a=2b
c=6b

2b+b+6b=180 9b=180 b=20
a=2b=40
c=6b=120

2007-02-19 16:22:57 · answer #9 · answered by victorschool1 5 · 0 0

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