The formula for the circumference of a circle is:
C = 2πr
The radius (r) is half of the diameter, so to find the radius just divide the diameter by two...
radius = 20 ÷ 2
radius (r) = 10 m
Plug in what you know into the formula for the circumference:
C = 2π(10)
C = 20π
The exact circumference is: 20π m
The approximate circumference is: 63 m
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
c=2piR would be the equation
Step-by-step explanation:
Answer:
i know the answer for question 8 & 9
8) Volume is the amount of space a 3D shape takes up.
A cubic cm block takes up 1 cubic cm. This is written as 1 cm³.
You can work out the volume of a shape by multiplying height × width × depth.
If the shape is made of cubic cm blocks, you can count the cubes to find the shape's volume.
9) The face or surface of a solid on its sides. That is, any face or surface that is not a base. See also. Lateral surface area, prism, pyramid, cone, cylinder.
- i hope this helps
Answer:
At this rate, it will take him to 3 hours to complete 72 problems.
Step-by-step explanation:
72/24 = 3
(If you want to check your answer you can do = 24 x 3 = 72)
The drive-way is 36.576 meters long. (about 37)
Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
we are given that driveway is 40 yards long.
WE know that
1 yard = 0.9144 metre
Multiply:
40 × 0.941 = 36.576
The drive-way is 36.576 meters long. (about 37)
Learn more about multiplications;
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