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dimaraw [331]
3 years ago
13

I need help with that​

Mathematics
1 answer:
Digiron [165]3 years ago
4 0

9514 1404 393

Answer:

  AC ≈ 7.3

Step-by-step explanation:

Corresponding sides of similar triangles are proportional.

  AC/BC = DF/EF

  AC/18 = 15/37 . . . . fill in the given values

  AC = 18(15/37) . . .  multiply by 18

  AC ≈ 7.3

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Vaselesa [24]

Answer:

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Step-by-step explanation:

The picture of the question in the attached figure

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A <u><em>circumscribed angle</em></u> is the angle made by two intersecting tangent lines to a circle

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In this problem

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That means

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so

m\angle BAC=m\angle DAC

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In the right triangle ABC

m\angle BAC+m\angle BCA=90^o

substitute given value

m\angle BAC+40^o=90^o

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minor\ arc\ BD=100^o

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