20 POINTS
The answer key says the answer to this question is 70 degrees. However my friend and I both got 50 degrees are we wrong or the answer key. Please explain if we did get it wrong. (No. 25)

20 POINTS The answer key says the answer to this question is 70 degrees However my friend and I both got 50 degrees are we wrong or the answer key Please explai class=

Respuesta :

Answer:


Step-by-step explanation:

4x+6x+8x = 180

18x = 180

x = 10

the smallest angle = 40

the complement = 90-40 = 50 degrees

I think you are correct and the answer key is wrong


Trying to work backward from the answer

90-70 =20

the angle would be 20

4: 6: 8    

20: 30: 40  this would not make a triangle


Answer:

50 is correct.

Step-by-step explanation:

The ratio of the three angles is 4:6:8. You solved correctly for x. Just let me catch up.

4x + 6x +8x = 180            Combine like terms.

18x = 180                          Divide by 18

18x/18 =  180/18               Combine

x = 10

You want the smallest angle. When you made the original equation from the proportion, you got 4x.

The smallest angle is 4*x= 4*10 = 40

It's compliment would be 90 - 40 = 50 just as you have it. I have no idea where the 70o comes from.

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