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lawyer [7]
3 years ago
10

The image represents what geometric construction?

Mathematics
2 answers:
Fynjy0 [20]3 years ago
5 0

Answer: 60° angle construction

Step-by-step explanation:

The geometric construction shown is on a 60 degree angle construction with a compass and straightedge or ruler. The pattern followed is that of making an equilateral triangle. Note that each three interior angles of an equilateral triangle is 60°. Using one of those angles we can get the desired angle in the following steps:

1. Draw a line segment which will become one side of the angle. The exact length is not that important. Label this line AB. A will be the angle's vertex.

2. Set the compasses on A; set its width to any convenient expansion

3. Draw an arc across AB and up over above the point A.

4. Without changing the compasses' width (expansion), move the compasses to the point where the arc crosses AB, and make an arc that crosses the first one.

5. Draw a line from A, through the intersection of the two arcs.

6. Done. The angle CAB has a measure of 60°

Trava [24]3 years ago
4 0
I believe this is a copy of an angle
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Step-by-step explanation:

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That means A is 12/60 = 1/5

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Jonathan’s class has 30 boys. Of the students in his class, 60% are girls. How many girls are in Jonathan’s class?
raketka [301]

Answer:

45 girls

Step-by-step explanation:

  • Remark
  • There are only 2 choices for gender. So if the class is 60% girls, the there must be 100 - 60 = 40% for the boys.
  • But we are told that the boys are 30 in number.
  • Let x = the total number of students.

Solution

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  • 0.4 x = 30                       Divide both sides by 0.4
  • 0.4 x / 0.4 = 30 / 0.4      Do the division
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Formula

Total of Boys and Girls = Number of boys + number of girls.

Givens

  • Total = 75
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Solution II

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5 0
3 years ago
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