What is the diameter of a circle when its area is given to be 154 square Centimetre?
(A) 14 is the correct answer.
How do you find the diameter of a circle when given the area?
Calculate the Diameter of a Circle, from Its Area
- Divide the area (in square units) by Pi (approximately 3.14159). Example: 303,000/3.14159 = 96447.98.
- Take the square root of the result (Example: 310.56). This is the radius.
- Now double the radius to get the diameter (Example: 621.12 meters).
How do I find the diameter of a circle?
2 x radius
Circle/Diameter
Is 154 cm square then its perimeter is?
So, the answer is option (c) 44cm…
How do you find the diameter of a circle in a square?
When a circle is inscribed in a square, the diameter of the circle is equal to the side length of the square. So, the side length of the square is 6 cm. The perimeter P of a square with side length s is given by P=4s . Substitute 6 for s in P=4s .
What is a diameter of a circle?
2 x radius
Circle/Diameter
What is the circumference of circle whose area is 1386 cm square?
Hence, we got the circumference of the circle as 132 cm.
What is the area of square formula?
The area of a square is calculated with the help of the formula: Area = s × s, where, ‘s’ is one side of the square. Since the area of a square is a two-dimensional quantity, it is always expressed in square units.
What is the radius of a circle if its perimeter and area are numerically equal?
2 units
Summary: The radius of the circle is 2 units if the perimeter and the area of a circle are numerically equal.
What is the meaning of circumference of a circle?
In geometry, the circumference (from Latin circumferens, meaning “carrying around”) is the perimeter of a circle or ellipse. That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment.
What is the area of a circle that can be inscribed in a square of side 6 cm?
36 πcm2.
What is the area of quadrant?
that is, pi (π) multiplied by the radius squared (r2). Now, to calculate the area of a quadrant, divide the area of a circle by 4 (as four quadrants make a circle). We get, Area of a quadrant, A= (πr2)/4 Square units.
How do you find the diameter and circumference of a circle?
How to find the circumference of a circle?
- Multiply the radius by 2 to get the diameter.
- Multiply the result by π, or 3.14 for an estimation.
- That’s it; you found the circumference of the circle.
What is meant by area of a circle?
Area of a circle is the region occupied by the circle in a two-dimensional plane. It can be determined easily using a formula, A = πr2, (Pi r-squared) where r is the radius of the circle. The unit of area is the square unit, such as m2, cm2, etc.
How do you find the circumference and area of a circle?
Divide the area by pi; that gives you r ². Find the square root; that gives you r. Double it; that gives you the diameter. Multiply by pi; that gives you the circumference.
How is Dia calculated?
How To Calculate Diameter?
- Diameter = Circumference ÷ π (when the circumference is given)
- Diameter = 2 × Radius (when the radius is given)
- Diameter = 2√[Area/π] (when the area is given)
What is 3.14 in a circle?
Succinctly, pi—which is written as the Greek letter for p, or π—is the ratio of the circumference of any circle to the diameter of that circle. … In decimal form, the value of pi is approximately 3.14.
How do you solve a circle?
Who discovered area of circle?
Archimedes of Syracuse
The Egyptians calculated the area of a circle by a formula that gave the approximate value of 3.1605 for π. The first calculation of π was done by Archimedes of Syracuse (287–212 BC), one of the greatest mathematicians of the ancient world.
What is a quarter of a circle called?
What Is a Quarter Circle (Quadrant)? The area (or) portion that is formed by two radii that are perpendicular to each other and one-fourth portion of the circumference of a circle is known as a quarter circle. This is also known as a quadrant of a circle.
Who discovered pi?
pi, in mathematics, the ratio of the circumference of a circle to its diameter. The symbol π was devised by British mathematician William Jones in 1706 to represent the ratio and was later popularized by Swiss mathematician Leonhard Euler.