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Alenkinab [10]
4 years ago
13

Find m ABC. Need help

Mathematics
2 answers:
zlopas [31]4 years ago
7 0

Answer:

30 degrees

Step-by-step explanation:

mixas84 [53]4 years ago
4 0

Answer:

<ABC = 30°

Step-by-step explanation:

<ABC + <CBD = 90 <em><u>[Complementary angles add up to 90°]</u></em>

x+7+2x+14 = 90

3x + 21 = 90

3x = 90-21

3x = 69

<em>Dividing both sides by 3</em>

x = 23

Now

<ABC = 23+7

<ABC = 30°

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