Two angles of a triangle measure 120 and 40°. What is the measure of the third angle of the triangle?

20°

the measure of the third angle of the triangle is x ( 0 < x < 90)

because this is 3 angles in a triangle, we have:

120 + 40 + x = 180

⇔ x = 180 - 120 - 40

⇔ x = 20°

Step-by-step explanation:

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i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

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1010: 3030

is it i think