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trapecia [35]
4 years ago
8

Find the measure of angle Z.

Mathematics
2 answers:
amm18124 years ago
4 0

check the picture below.

recall that a flat-line is always 180°, and the sum of all interior angles in a triangle is 180°.

dusya [7]4 years ago
3 0
If the angle next to 123° is x, then 123 + x = 180, therefore x = 57°. Because the angles in a triangle add up to 180, 57 + 90 + Z = 180, therefore Z = 33°
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Answer:

A: 15

Step-by-step explanation:

The angles are opposite to each other.

Vertically opposite angles are equal in size.

Put up an equation and solve for a.

6a + 10 = 3a + 55

Subtract 3a and 10 on both sides.

6a - 3a = 55 - 10

Combining like terms.

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Divide both sides by 3.

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3 0
3 years ago
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shusha [124]

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6 0
2 years ago
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