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larisa86 [58]
3 years ago
11

The second angle of a triangle is three times as large as the first angle. The third angle is 40° greater than the first angle.

How large are the angles?
Mathematics
1 answer:
viktelen [127]3 years ago
7 0
30 70 90 are the angles of the triangle hope this is helpful
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Answer:

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A = W*L

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We know that the area of the window and the frame (together) is:

a = 2*x^2 + 12*x + 16

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The coordinates of polygon ABCD are:

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