In a triangle, the measure of the first angle is three times the measure of the second angle. the measure of the third angle is 80 degrees more than the measure of the second angle. use the fact that the sum of the measure of the three angles of a triangle is 180 to find the measure of each angle

Question

In a​ triangle, the measure of the first angle is three times the measure of the second angle. the measure of the third angle is 80 degrees more than the measure of the second angle. use the fact that the sum of the measure of the three angles of a triangle is 180 to find the measure of each angle

dayakar · Answer

let the second angle =x
first angle = 3x
third angle = 80
sum of the three angles in a triangle = 180
can u find the angles?

anonymous · Answer

@dayakar Third angle is 80+x

helasi95 · Answer

wouldnt it be: 3x + x + (x+80)= 180 ?

dayakar · Answer

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dayakar · Answer

3x+x+80 =180

4x +80=180

4x= 180-80
4x= 100

what is x ?

anonymous · Answer

@Helasi95 Yes 3x + x + (x+80)= 180 is right. @dayakar Is forgetting that.

dayakar · Answer

i am sorry @Zelda  is correct

helasi95 · Answer

3x + x+ (x+80) = 180

5x + 80 =180

5x = 100

x=100/5

x=20 

...Then:

1. 3x = 60
2. x = 20
3. x + 80 = 100

100 + 60 + 20 = 180.

dayakar · Answer

3x+x +80+x =180
5x +80 =180

5x =180-80

5x =10
what is x ?

helasi95 · Answer

Did you mean:

5x = 100, what is x? 

Well... the answer is up x = 100/5 = 5 x 10= 50 + (5 x 10) = 20

x = 20.