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never [62]
3 years ago
6

Can someone be kind to help me on questions 29-30

Mathematics
1 answer:
marissa [1.9K]3 years ago
6 0

Answer:

-1


Step-by-step explanation:

30 - 29 = 1

29 - 30 = -1


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Step-by-step explanation:

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We know that the sum of the angles of a triangle is always 180°. Therefore, if we know the two angles of a triangle, and we need to find its third angle, we use the angle sum property. We add the two known angles and subtract their sum from 180° to get the measure of the third angle.

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considering the next part of the triangle where 13° , z° and y° is located as ΔACD

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