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NeTakaya
3 years ago
5

I’ll give brainly The measure of ABC = 180°.

Mathematics
1 answer:
PolarNik [594]3 years ago
5 0

Answer:

y=37

Step-by-step explanation:

the addition of the 3 angles is 180°

then 40 + y +29 +2y  = 180

        69 + 3y =180

        3y  = 180 -69

        3y= 111

        y =111 ÷ 3

        y = 37

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See below

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