bobbinicole884 bobbinicole884

01-11-2021
Mathematics

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someone pls help with this!! i'll give brainliest

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emergenitro emergenitro

01-11-2021

Answer:

103°

Step-by-step explanation:

Let's take the 3rd angle as θ:

Since all the angles in a triangle add up to 180°,

57 + 20 + θ = 180

77 + θ = 180

θ = 180 - 77

= 103°

Hence, the third angle is 103°

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