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natulia [17]
3 years ago
6

Find the value of x.

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0
<h3>Answer:  x = 35  (choice D)</h3>

====================================================

Work Shown:

secant angle = (far arc - near arc)/2

angle BGC = (arc BC - arc AD)/2

40 = (115 - x)/2

2*40 = 115-x

80 = 115-x

115-x = 80

-x = 80-115

-x = -35

x = 35

For more information, you can search out "secant angles" and it should go over how the formula is set up and why it works.

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Select the correct answer.
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Answer:

<h3>64°</h3>

Step-by-step explanation:

y = 52° ( Opposite Angles )

y + 2x = 180° ( Interior Angles )

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The lengths of all sides of the triangle will be 21 cm, 21 cm, and 21 cm

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