Table of Contents
What is the circumference of a 6 cm diameter circle?
12π cm
Finding the Circumference: If r = 6 cm, the the circumference is c = 2π(6) = 12π cm, if writing in terms of π. If you prefer a numerical value, the answer rounded to the nearest tenth is 37.7 cm.
How do you find the area of a segment of a circle with radius?
Identify the radius of the circle and label it ‘r’. Identify the central angle made by the arc of the segment and label it ‘θ’. Find the area of the triangle using the formula (1/2) r2 sin θ. Subtract the area of the triangle from the area of the sector to find the area of the segment.
How do you draw a 6 cm diameter circle?
Answer
- Take your Rounder.
- Insert your pencil.
- measure 3cm in the rounder.
- place the pointed end on the paper and draw the circle.
- The circle drawn will be with diameter of 6 cm.
What is a segment in a circle?
In geometry, a circular segment (symbol: ⌓) is a region of a circle which is “cut off” from the rest of the circle by a secant or a chord.
What is the formula of major segment of circle?
If you know the radius, r, of the circle and you know the central angle, ϴ, in degrees of the sector that contains the segment, you can use this formula to calculate the area, A, of only the segment: A = ½ × r^2 × ((π/180) ϴ – sin ϴ)
What’s the area of a 6 inch circle?
28.27 sq.
Answer: The area of a circle with a diameter of 6 units is 28.27 sq.
How do you find the segment area of a circle?
To find the circle segment area, you need to know at least two variables. In our segment area calculator you’ll find two popular formulas implemented: Formula given radius and central angle A segment = 0.5 * r² * (α – sin (α))
What is the diameter of a circle in math?
The diameter of a circle calculator uses the following equation: π is approximately equal to 3.14. It doesn’t matter whether you want to find the area of a circle using diameter or radius – you’ll need to use this constant in almost every case.
How many segments does cutting a circle with a line give?
According to some definitions, the central angle doesn’t need to be smaller than 180° – in that case, you can say that cutting a circle with a line gives you two segments: a major segment and a minor segment. Have a look at the picture below to help you visualise the difference between segment and sector, as those two names are sometimes confused:
What is a circular segment?
Circular segment – is an area of a “cut off” circle from the rest of the circle by a secant (chord). If you know radius and angle, you may use the following formulas to calculate the remaining segment parameters: But if you don’t know radius and angle, you still can calculate the segment parameters by chord length and segment height: