Question

find the unknown variable ​

Answer 1

Answer:

$50 + 70 + x = 180 \\ x = 180 - 120 \\ x = 60$

that's is your answer

Answer 2

Answer:

Step-by-step explanation:

Lets start by what we know :

- The sum of all angles in a triangle is 180°

- Angle 1 is 70

- Angle 2 is 50

; We have to find angle s

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Thus we can say :

50 + 70 + s = 180

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50 + 70 + s = 180

120 + s = 180

s = 180 - 120

s = 60

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