Respuesta :

Sueraiuka

Step-by-step explanation:

Hey there!!!!

Given,

Angle r and angle s are supplementary angle.

And angle r = 120°.

Now, we have,

supplementary angle's sum is always 180°.

So, angle r + angle s = 180°.

or, 120°+ angle s = 180°

Therefore the measure of angle s is 60°.

Hope it helps....

aliciaiza16
The question states that the angles are supplementary, meaning that both angles add up to 180. The prompt also says that angle r is 120°, this means that:

m
Plug in what you know:

120° + m
Subtract 120° from both sides:

120° + m-120° -120°

And you get:

m
Hope this helped!

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