Therefore,ДЄrea= ВЅ(R) x (2R) = ПЂR 2В = ПЂD 2/4 Area of Semi-CircleДЄs the area of a complete circle is ПЂR 2 then going by the unitary method the area of a semi-circle will be ПЂR 2 /2.

Here, Height= Radius of circle= R and Base = Circumference of the circle=2ПЂR. Step 5: Now the triangle of pyramid formed will have the lowermost strip of length equal to the circumference of the circle and the height will be equal to the radius of the circle.ДЄrea of Triangle form= ВЅ(Height) x (Base).Step 4: Arrange the strips in form of a pyramid with the longest outermost strip at the bottom and the shortest innermost one at the top.Step 3: Make a cut with scissors along the radius of the circle following which cut down the concentric rings drawn such that they form straight strips.Step 2: Draw concentric rings of equal width inside the constructed circle in the following manner:.For the construction of a circle draw it with a compass or follow the following procedure: Take a paper pin fixed centre of the circle to be constructed fix the pin over it then tie a thread on the pointed lower tip of the pin tie other end the thread to the tip of the pen or pencil you are using for construction after this trace out the complete circular path with the pen or pencil around the fixed centre. This time we shall be following the triangular approach. Understand the Theorems Related to Chord of the Circle here.ДЄs we have already seen the rectangular method of derivation of the area of a circle. Now, what is the area of a circle? Well, the area of a circle is the space occupied by it with a certain radius on a two-dimensional plane.В So, if your parents want to put new carpet in your circular room, how much carpet you need to buy? Again, it will be equal to the area of the room. Semi-circle is exactly half of a complete circle then its circumference or perimeter should also be half of the circumference/perimeter of circle of a complete circle, it is so but a semicircle has some part of its periphery in form of straight line so circumference or more precisely in case of semi-circle, perimeter is: ПЂR + 2RДўR= Diametre of Semi-Circle Area of CircleДЄrea of any geometrical figure is the space occupied by it on a two-dimensional plane. Learn more about Area and Perimeter Related to Arcs of Circle here in detail.

Where, C= circumference and ПЂ= It is constant pronounced as вЂњpiвЂќ with the value of 22/7 or 3.14 The formula for the circumference of a circle: Step 2: Put the measured value of the radius in the following formula and calculate:.Step 1: Use ruler or measuring tape to measure the radius of the circular plane.Geometrical calculation of circumference(Perimeter of circle) Area and Perimeter Related to Arcs of a Circle.Perimeter and Area of Circle and Semicircle.Browse more Topics under Areas Related To Circles This gives another definition of the circle that it the total length of the rope which wraps around its boundary perfectly will be equal to its circumference. The measured length will be the circumference of the circle. Step 2: Then measure the length of the thread required for tracing the entire boundary of the circular plane with a ruler.Step 1: Take out some amount of thread trace the path of the circular plane object with the thread.To calculate the circumference of the circle we can follow the following steps: The perimeter of a circle can also be specified as Circumference of the circle.ДЄs a circle is not a regular figure so obviously we cannot use a ruler for calculating the circumference of the circle. So now if you want to fence a plot, how would you calculate how much fencing is required? Yes, by simply calculating the perimeter of the plot, you would be able to calculate the amount of fencing required. The figure can be any regular or irregular polygon it does not have to be a regular geometric figure. The perimeter of a plane 2-D figure is the length of the outer periphery of the figure.

Cicumference=Perimetre of circle and Diametre of circle Area andВ Perimeter of Circle and Semi-Circle Perimeter

Area of circle formula