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leonid [27]
3 years ago
9

Find the circumference of the circle .the diameter is 6cm

Mathematics
2 answers:
Vinvika [58]3 years ago
5 0

Answer:

18.84cm

Step-by-step explanation:

There is a formula which for the diameter is pie (3.14) times the diameter. Now if you have the radius it would be pie (3.14) times 2 times whatever the radius would be. Now you could use either formula for this, just divide the diameter by two to get 3.

So 3x2x3.14=18.84cm

So then you could just multiply 6x3.14 and still get 18.84cm

worty [1.4K]3 years ago
4 0

Answer: 6π cm

Step-by-step explanation: To find the circumference of the circle, start with the formula for the circumference of a circle which is shown below.

Circumference = πd

Since we are given that the diameter of the circle is 6 centimeters,

we can plug a 6 in for the diameter in our formula and we have

(π)(6 cm) which is 6π cm.

So the circumference of this circle is 6π cm.

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Anyone know how to do this
svlad2 [7]

Answer:

The area of the rectangle on the left side is

9cm \:  \times 4cm = 36 {cm}^{2}

The area of the bottom rectangle is

6cm \times 2cm = 12 {cm}^{2}

The total area of the composite figure will be

36 {cm}^{2}  + 12 {cm}^{2}  = 48 {cm}^{2}

Step-by-step explanation:

The area of any given rectangle can be found by multiplying the length of that rectangle by its width. The rectangle on the left side has a length of 9cm but the width is unknown. To find the width, we subtract 6cm from the width of the bottom rectangle: 10cm. And that gives us 4cm.

Therefore, we can now calculate the area to be: length × width = 9cm × 4cm = 36cm²//

The area of the bottom rectangle can be found similarly by multiplying the length: 2cm by the width: 6cm of that rectangle. And the result gives us: 2cm × 6cm = 12cm²//

The total area of the composite figure is calculated by adding the results from the left and bottom rectangles together. And that gives us: 36cm² + 12cm² = 48cm²//

8 0
3 years ago
¿Cuántas esferas hay en la figura 20?
scoundrel [369]

Answer:

418

Step-by-step explanation:

fig 2 = fig 1 + 5

fig 3 = fig 2 + 7 or fig 1 +5+7   16

1  2  3   4  5   6    7  8   9  10   11   12   13  14   15   16   17  18  19  20

4+5+7+9+11+13+15+17+18+19+21+23+25+27+29+31+33+35+37+39

8 0
3 years ago
Is anyone good a maths?I really need your help for a test coming up?​
tester [92]

Answer:

i am, but im not good at high school,

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
You are given the following equation: (x+3)^2 + (y+9)^2 = 144 What is the<br> radius? *
Anettt [7]

Answer:

12

Step-by-step explanation:

(x-h)^2 + (y-k)^2 = r^2 so taking the square root of 144 gives you 12

3 0
2 years ago
I need help. trying to solve this.
kkurt [141]
You can use this formula
{x}^{2}  + (a + b)x + ab
a and b are the solutions to the equation

{x}^{2}  + ( -  \frac{2}{5}  +  \frac{1}{3} )x + ( -  \frac{2}{5}  \times  \frac{1}{3} ) = 0 \\  {x}^{2}    -  \frac{1}{15}x  -  \frac{2}{15}  = 0
8 0
3 years ago
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