What is diameter kid definition?Space and Astronomy
Kids Definition of diameter 1 : a straight line that runs from one side of a figure and passes through the center Measure the diameter of the circle. 2 : the distance through the center of an object from one side to the other : thickness the diameter of a tree trunk. diameter.
What is diameter short answer?
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle.
What is diameter in your own words?
Diameter is defined as the length of a straight line through the center of a circle. An example of a diameter is the length of a line sliced down the center of a pie.
How do you find the diameter for kids?
Video quote: So just like we mentioned in number two there the diameter is all the way across the circle and the radius is from the edge to the center point.
What is a diameter class 9?
Diameter is defined as the line passing through the center of a circle having two extremes on the circumference of a circle. The Diameter of a circle divided the circle into two equal parts known as semi-circle. The center of a circle is the midpoint of its diameter.
What is diameter of circle class 10?
The diameter of a circle is the distance from one point on the surface of a circle to the other point on the circle’s surface, which passes through the centre.
What is diameter of a circle definition?
Diameter of a circle
The diameter is the length of the line through the center that touches two points on the edge of the circle.
What is called radius of a circle?
noun, plural ra·di·i [rey-dee-ahy], ra·di·us·es. a straight line extending from the center of a circle or sphere to the circumference or surface: The radius of a circle is half the diameter. the length of such a line. any radial or radiating part.
What is a radius of a circle class 9?
The radius of a circle is the length of the line from the centre to any point on its edge.
Is radius half the diameter?
A radius is half the length of the diameter.
What is the definition of circumference *?
Definition of circumference
1 : the perimeter of a circle The circle measures 22 inches in circumference. 2 : the external boundary or surface of a figure or object : periphery from the center to the circumference of the sphere.
How many diameters can a circle have?
Thus the diameter of the circle is twice as long as the radius. So, infinitely many diameters can be formed in the circle.
What is the decimal for pi?
In decimal form, the value of pi is approximately 3.14. But pi is an irrational number, meaning that its decimal form neither ends (like 1/4 = 0.25) nor becomes repetitive (like 1/6 = 0.166666…). (To only 18 decimal places, pi is 3.141592653589793238.)
How do you work out the radius?
To find the radius from the circumference of a circle, you have to do the following:
- Divide the circumference by π, or 3.14 for an estimation. The result is the circle’s diameter.
- Divide the diameter by 2.
- There you go, you found the circle’s radius.
How do you find a diameter?
The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.
How do you find area with diameter?
The formula for the area A as a function of the diameter d of a circle is given by A = π (d/2)^2.
What is radius and diameter?
The diameter is a straight line that passes through the center of the circle. The radius is half of the diameter. It starts from a point on the circle, and ends at the center of the circle.
What is the diameter of 7 centimeters?
Answer. Here,diameter is 7 cm. So radius is 7/2=3.5 cm.
What is circle name?
A circle is named by its center. Thus, the circle to the right is called circle A since its center is at point A. Some real world examples of a circle are a wheel, a dinner plate and (the surface of) a coin. The distance across a circle through the center is called the diameter.
What is the diameter of the sun?
The mean radius of the sun is 432,450 miles (696,000 kilometers), which makes its diameter about 864,938 miles (1.392 million km). You could line up 109 Earths across the face of the sun, according to NASA. The sun’s circumference is about 2,715,396 miles (4,370,006 km).
What is the diameter of a pole?
To find it, measure around the circumference of the pipe with flexible measuring tape. Divide the circumference by pi, or about 3.14159. For example, if the circumference is 12.57 inches (319 mm), you would divide by pi, and get an outside diameter of about 4 inches (100 mm).
What is the diameter of the Uranus?
Uranus is approximately 31,000 miles (50,000 kilometers) in diameter, or about four times the size of Earth. The Earth is approximately 7,900 miles (12,800 kilometers) in diameter, or about four times the diameter of the Moon, 2,100 miles (3,500 kilometers).
What is the diameter of Mercury?
Mercury’s diameter is 3,030 miles (4,878 km), comparable to the size of the continental United States. This makes it about two-fifths the size of Earth. It is smaller than Jupiter’s moon Ganymede and Saturn’s moon Titan.
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