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weqwewe [10]
3 years ago
12

which is the area of a circle with a radius of 2 units? (use 3.14 for ) 6.28 square units 12.56 square units 25.12 square units

40 square units
Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0
The area of the circle can be formulated as A = πr². So if the radius is 2 units, then you simply use it and multiply everything. 

First you substitute the data:

A = πr²
A = (3.14)(2)²

Then multiply everything and get to the answer of A = 12.56 square units

Thus, the answer is 12.56 square units. 
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Step-by-step explanation:

First you must understand that in geometry, the alternate interior angles are equal

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Find the measure of the arc or angle indicated. NO LINKS.​
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9514 1404 393

Answer:

  10.  A) 120°

  11.  D) 40°

  12.  D) 54°

  13.  A) 101°

Step-by-step explanation:

The applicable rules of angles and arcs are ...

  • the whole is the sum of the parts
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  • an inscribed angle intercepts an arc of twice its measure

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10) Angles C and L intercept the same arc (DE) so will have the same measure.

  15x = 16x -4

  4 = x . . . . . . . . add 4-15x

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11) Arc VW is twice the measure of angle X, so ...

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  8 = x . . . . . . . . . subtract 9x

  ∠VXW = 5x = 5(8) = 40 . . . degrees

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12) Arc EFG is twice the measure of angle W, so ...

  70° +FG = 2(88°)

  FG = 106° . . . . . . . . . subtract 70°

Arc FGW is twice the measure of angle E, so ...

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  GW = 54° . . . . . . . . . . subtract 106°

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13) Arc ST is twice the measure of angle R. The sum of arcs is 360°.

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  119° +2(70°) +TR = 360°

  TR = 101° . . . . . . . . subtract 259°

5 0
2 years ago
Read 2 more answers
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