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3 years ago

Formula for circumference

Mathematics

2 answers:

FromTheMoon [43]3 years ago

6 0

Answer:

3.14 time the diameter of the circle

Step-by-step explanation:

Licemer1 [7]3 years ago

5 0

Answer:

pi x diameter

Step-by-step explanation:

To calculate the circumference of a circle, simply multiply pi (3.14) by the diameter (straight line passing from side to side through the center of the circle)

For instance, if you knew the diameter of a circle was 6 inches. Simply multiply 6 inches by pi!

6 x pi = ?

? approximately equals 18.85 inches.

The circumference of the circle would be 18.85 inches!

If you only have the radius of the circle, simply multiply it by two to get your diameter. Remember, the radius is just half the length of the diameter.

Hope this helps! :)

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The slant height is 8 inches and the diameter is 8 inches, what

Lynna [10]

Answer:

150.85inches

Step-by-step explanation:

TSA of cone= πr(r+l)

= 22/7×4(4+8)

= 150.85inches

4 0

3 years ago

A sailboat leaves port and sails 12 kilometers west and then 9 kilometers north.

GarryVolchara [31]

Answer: The sailboat is at a distance of 15 km from the port.

Step-by-step explanation: Given that a sail boat leaves port and sails 12 kilometers west and then 9 kilometers north.

We are to find the distance between the sailboat from the port in kilometers.

Since the directions west and north are at right-angles, we can visualize the movement of the sailboat in the form of a right-angled triangle as shown in the attached figure.

The sailboat moves leaves the port at P and reach O after sailing 12 km west. From point O, again it moves towards north 9 km and reach the point S.

PS = ?

Using the Pythagoras theorem, we have from right-angled triangle SOP,

Thus, the sailboat is at a distance of 15 km from the port.

3 0

3 years ago

Solve the logarithmic equation. Round to the nearest ten-thousandth if necessary. 3 log 2x = 4

ch4aika [34]

3 log 2x = 4

==> log 2x = 4/3

==> 2x = 10^(4/3)

==> x = \frac{10^(4/3)}{2}

7 0

3 years ago

Manas receives a commission of Rs.5,000 on sales of Rs.65,000.How much commission will he get on sales of Rs.20,000.

tangare [24]

$\\
\text{Let Manas receives a commission of Rs. 5000 on sales of Rs. 65000}\\
\\
\text{We need to find how much commision he will get on the sale of Rs.20000}\\
\\
\text{To find the commision, we use the unitary method.}\\
\\
\text{On sales of Rs. 65000, Manas receives a commision of}=5000\\
\\
\text{so on sales of Rs. 1, Manas will receiv a commision of}=\frac{5000}{65000}\\
\\
\text{Hence on sales of Rs. 20000, Manas will receiv a commision of}\\
\\=\frac{5000}{65000}\times 20000\\
\\
=1538.46$

Hence, on the sales of Rs. 20000, Manas will receive a commission of: Rs. 1538.46

6 0

3 years ago

Which one is correct?

larisa86 [58]

Answer:

c is the answer

Step-by-step explanation:

4 0

2 years ago