What is the circumference of the radius is 7cm?
What is the circumference of the radius is 7cm?
Hence circumference of the circle =2π(7)=2⋅722⋅7=2⋅22=44 cm.
What’s the circumference of a circle with a radius of 7 in Round your answer to the nearest inch?
The circumference of a circle with a radius of 7 inches would be 43.98 inches.
What is the radius of 7?
| Example | ||
|---|---|---|
| Problem | Find the diameter of the circle. | |
| d = 2r d = 2(7) d = 14 | The diameter is two times the radius, or 2r. The radius of this circle is 7 inches, so the diameter is 2(7) = 14 inches. | |
| Answer | The diameter is 14 inches. | |
What is the circumference of a 7ft circle?
Diameter of a Circle
| Diameter | ft | in |
|---|---|---|
| 7′0″ | 21.99 | 263.9 |
| 7′1″ | 22.25 | 267.0 |
| 7′2″ | 22.51 | 270.2 |
| 7′3″ | 22.78 | 273.3 |
What is the area of a 7ft circle?
How big is a 7 foot circle?…Area of a 7 Foot Circle.
| 38.485 | square feet |
|---|---|
| 4.2761 | square yards |
| 3.5753 | square meters |
| 35,753 | square centimeters |
How do you figure out a radius?
Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.
What is the radius of a 4 foot circle?
Diameter of a Circle
| Diameter | ft | in |
|---|---|---|
| 4′0″ | 12.57 | 150.8 |
| 4′1″ | 12.83 | 153.9 |
| 4′2″ | 13.09 | 157.1 |
| 4′3″ | 13.35 | 160.2 |
What is the difference between a radius and diameter?
Radius, Diameter and Circumference The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.
How do you convert diameter to radius?
Just divide by two; half the diameter is the radius. For example, if you have a diameter of 6cm, just divide by 2. You will get half of the value, which is 3cm; this is the radius.
Is diameter double the radius?
The diameter measures how wide the circle is, and is always equal to twice the radius (2r).
How do you get the diameter from the radius?
Use “D = R x 2”, in which “D” equals diameter and “R” equals radius, to solve for the diameter using the numbers you got earlier. Then use “C = pi x D”, in which “C” equals circumference, to solve for the circumference.
Is the circumference 3 times the diameter?
The circumference is about 3 times the diameter of the circle. The ratio of circumference to diameter (C ÷ d) is always π. This means that the circumference (C) is always about 3.14 (π) times the diameter (d).
How do you double the diameter?
1 Answer
- If the diameter is doubled, then d1=2d.
- The area A1 is:
- A1=πd214=π⋅(2d)24=4πd24=πd2.
- So A1=4A.
What is the diameter of a 20 foot circumference circle?
Diameter of a Circle
| Diameter | ft | in |
|---|---|---|
| 20′0″ | 62.83 | 754.0 |
| 20′1″ | 63.09 | 757.1 |
| 20′2″ | 63.36 | 760.3 |
| 20′3″ | 63.62 | 763.4 |
What circumference is 20 diameter?
What is the circumference of a circle with a diameter of 20 in? How far around is a circle that is 20 inches across?…Circumference of a 20 Inch Diameter Circle.
| 62.832 | inches |
|---|---|
| 5′ 2.832″ | feet and inches |
| 1.5959 | meters |
| 159.59 | centimeters |
What is the diameter of a 18ft circle?
Diameter of a Circle
| Diameter | ft | in |
|---|---|---|
| 18′0″ | 56.55 | 678.6 |
| 18′1″ | 56.81 | 681.7 |
| 18′2″ | 57.07 | 684.9 |
| 18′3″ | 57.33 | 688.0 |