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3 years ago

How do i measure the diameter of a circle?

2 answers:

6 0

A circle diameter is the measurement of a straight line that goes across the middle from one point on the edge of the circle and to another point on the opposite edge of the circle. Depending on the dimensions you do know, you can figure the diameter through a number of methods. You will need to use the value pi to calculate this. Pi, typically expressed as 3.141593, is a mathematical constant that is an odd number.

Measure the diameter of a circle using a ruler. Unlike the imaginary ones in math problems, if you are trying to find the diameter of an actual circle, use a ruler to measure one end of the circle to the other, making sure that your ruler reaches the exact center. If you're not sure where the center is you should do your best to measure the results a couple of times and then average them.

When you know the radius, multiply by 2. The radius is the exact center of the circle to the external line. It is just half the diameter, and so the calculation of the radius actually needs to be multiplied. If the radius is 5 cm, for instance, the diameter is 10 cm.

trapecia [35]3 years ago

3 0

Answer:

Step-by-step explanation:

If you know the radius of the circle, double it to get the diameter. The radius is the distance from the center of the circle to its edge. If the radius of the circle is 4 cm, then the diameter of the circle is 4 cm x 2, or 8 cm. If you know the circumference of the circle, divide it by π to get the diameter

hope that helps!

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Six machines, each working at the same constant rate, together can complete a certain job in 12 days. How many additional machin

Schach [20]

Answer:

3 machine

Step-by-step explanation:

It is given that 6 machine each working at the same rate can complete the work in 12 days

We the has to complete in 8 days

Let we need x extra machine to complete the work in 8 days

So total number of machines =x+6

Now according to man work day equation $M_1D_1=M_2D_2$

$6\times 12=(x+6)\times 8$

$8x+48=72$

$8x=24$

x=3 machine

7 0

3 years ago

Help please in the photo

Arada [10]

Answer:

m = 40

Step-by-step explanation:

The triangle inside the circle has 2 equal sides ( the radii ) of the circle, thus

The base angles are congruent both 50°

The 3 angles on the tangent sum to 180°, so

m + 50 + 90 = 180

m + 140 = 180 ( subtract 140 from both sides )

m = 40

5 0

3 years ago

(x - 4/6) = (x + 2/12) what is x please show your work.

Sergio039 [100]

The equation has no solution

4 0

3 years ago

Un número desconocido es multiplicado por 11 y a este resultado se le resta 24. El resultado de esta operación es 86. Escribe en

kicyunya [14]

Answer: The number is 10.

Step-by-step explanation:

Let x be the required number.

Given: 11 is multiplied to the number then 24 is subtracted from that and the result is 86.

The mathematical statement for the given situation,

11x -24 = 86

To solve the equation, Add 24 on both sides , we get

11x - 24 +24 = 86+24

⇒ 11x = 110

Divide both sides by 11, we get

x = 10

hence, the number is 10.

3 0

3 years ago

Can someone help me with this work please

tangare [24]

Answer:

-See below

Step-by.step explanation:

In the first column, on the left of the vertical line, you place the first digit of the number , then on the second row on you place the second digit.

So on the second row you have the entries:

1 | 2 2 4 representing 12, 12 and 14.

On the first row the 2 0ne digit numbers 3 and 8 are represented by

0 | 3 8.

Similarly the last 2 rows are:

2 | 0 1 3 6

3 | 4

8 0

3 years ago