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do you know how many is the sum of angles of a triangle - ?
Triangles angles add up to 180. Subtract what you know. :)
Remainder will be z.
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you have to find the sum
You just have to remember how many degrees there are in a triangle, add the given ones and subtract the sum from the total degrees to get your missing degree and a way to check would be to add them all and make sure they add up correctly or make sure the new angle is acute
23?
Yes!
correct!
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