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Is the circumference of a circle greater than less than or equal to the perimiter of a semi circle?
Wiki User
∙ 10y ago
The circumference is pi x diameter
Perimeter of semi circle is (0.5) x pi x diameter + diameter which is
diameter x (0.5pi + 1)
Subtracting Perimeter from Circumference we get
[pi x diameter] - [diameter x (0.5pi + 1)] which is
diameter x [pi - 0.5pi -1]
pi = 3.1415
Hence the result = diameter x (3.1415 - 1.570 - 1) which will always be positive. Hence circumference is greater than perimeter of semi circle.
Intuitively also we see that the diameter is a straight line and the semi circles are arcs over the end points of the diameter.
Wiki User
∙ 10y ago
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Which is greater a circle with a circumference of 40.5 feet or a circle with radius 80 inches?
A circle with a radius of 80 inches has a circumference of 502.65 inches, which is equal to 41.8875 feet. Therefore, it is greater than a circle with a circumference of 40.5 feet.
Why does thr radius of a circle always go into the circumference of a circle 6 times?
Circumference is equal to 2πr. Where π is equal to 3.14159, so 2π=6.283. Just to find the circumference you are multiplying the radius by a number a little greater than 6.
What is the ratio of the circumference of a circle to its distance?
Circumference of a circle divided by its diameter is equal to pi
What is a irrational number equal to the circumference to the diameter of the circle?
The circumference of a circle divided by its diameter is equal to pi which is an irrational number.
How are the circumference of a circle the diameter of a circle and pi related?
The circumference of a circle divided by its diameter is equal to the value of pi.
Which is greater a circle with a circumference of 40.5 feet or a circle with radius 80 inches?
A circle with a radius of 80 inches has a circumference of 502.65 inches, which is equal to 41.8875 feet. Therefore, it is greater than a circle with a circumference of 40.5 feet.
Why does thr radius of a circle always go into the circumference of a circle 6 times?
Circumference is equal to 2πr. Where π is equal to 3.14159, so 2π=6.283. Just to find the circumference you are multiplying the radius by a number a little greater than 6.
Which part of a circle is the circumference?
The circumference is the length around the outside of the circle. The circumference is equal to 2pieR (2xPiexRadius)
What is the ratio of the circumference of a circle to its distance?
Circumference of a circle divided by its diameter is equal to pi
How do you work out the perimiter of a circle?
The perimeter of a circle is called it circumference, "C". To calculate it, multiply its diameter by the constant, pi. Pi is roughly equal to 3.14159265. So, let's say you have a circle with a 10-foot diameter. Then C=10 x 3.14159265 = 31.42 (rounded off).
What is a irrational number equal to the circumference to the diameter of the circle?
The circumference of a circle divided by its diameter is equal to pi which is an irrational number.
How are the circumference of a circle the diameter of a circle and pi related?
The circumference of a circle divided by its diameter is equal to the value of pi.
What happens when you divide the circumference of a circle by the diameter?
The circumference of a circle divided by its diameter is equal to the value of pi
If the diameter of the circle above is 10 meters what is the circumference of the circle?
Circumference is equal to Diameter x Pi. So the circumference is 10π
What is a circle equal to one half of a circumference?
It is a semicircle.
What is the ratio the circumference of a circle to the diameter of a circle?
Pi, which is approximately equal to 3.14159 Circumference = pi x diameter
What is circumference compared with the diameter?
The circumference of a circle divided by its diameter is equal to pi.
