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Volgvan
2 years ago
10

The diameter of a circle is 19 inches. Using the formula C ≈ 3d, what is the approximate circumference of the circle?

Mathematics
2 answers:
Kaylis [27]2 years ago
7 0
Circumference = 3 x the diameter

So, what we have to do is multiply the diameter by 3

19 x 3 = 57

Diameter = 19
Radius = 9.5
The Circumference = 57

Hope this helps you :)
goldfiish [28.3K]2 years ago
4 0
Hello there.

Question: <span>The diameter of a circle is 19 inches. Using the formula C ≈ 3d, what is the approximate circumference of the circle?

Answer: The formula is stating that the circumference is approximately equal to 3 times the diameter.
If the diameter is 19 in then to figure out the approximate value of the circumference you need to multiply it by 3.
19 x 3 = 57.
The circumference is approximately 57 in.

Hope This Helps You!
Good Luck Studying ^-^</span>
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Sum of two numbers is 24 and the difference is 15.What are the two numbers ?
Alexeev081 [22]
Let,
the bigger number  be "x"
the smaller number be "y"
Now, according to the question,
x + y = 24...........equation (1).............because the sum of numbers is 24
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Taking equation (2),
x - y = 15
x = 15 + y ....................equation (3)

Now, Taking equation (1)
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y = 4.5
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x = 15 + 4.5
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5 0
3 years ago
X 20) Becca has 3 times more games than Susan has. Write an algebraic
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Given the diagram below. If G is the circumcenter of ABC. DC = 16, GB = 21 and AZ = 19, find each measure.​
Jlenok [28]

Answer:

Step-by-step explanation:

Properties of a circumcenter;

1). Circumcenter of a triangle is a point which is equidistant from all vertices.

2). Point where perpendicular bisectors of the sides of a triangle meet is called circumcenter of the triangle.

From the picture attached,

9). AG = GB = GC = 21

10). BC = 2(DC)

            = 2×16

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11). By applying Pythagoras Theorem in ΔGFB,

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12). By applying Pythagoras theorem in ΔGDB,

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     (21)² = (DG)² + (16)² [BD = DC = 16]

     DG² = 441 - 256

     DG = √185

     DG =  13.6

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