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sergejj [24]
3 years ago
13

Quadrilateral ABCD is inscribed in a circle. Find the measure of angle D. Show your work.

Mathematics
1 answer:
Stells [14]3 years ago
3 0

Answer:

80°

Step-by-step explanation:

The opposite angles of an inscribed quadrilateral add up to 180.

(2x + 13) + (3x + 37) = 180

(2x + 3y) + (5y) = 180

Solving the first equation:

5x + 50 = 180

5x = 130

x = 26

Solving the second equation:

2x + 8y = 180

2(26) + 8y = 180

52 + 8y = 180

8y = 128

y = 16

5y = 80.  So ∠D = 80°.

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2 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
A restaurant manager recorded the number of people in different age groups who attended her food festival. She then created the
Andre45 [30]

Answer:

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