Area of a Semi Circle Example 3 Find the area of the semi-circle below and give your answer to the nearest whole number. To find the area of the semicircle, we need to find the radius first. The radius is equal to half the diameter. So the radius is half of 18 = 9 cm Next we...
The length of a wire which is tied as a boundary of a semi ciruclar park is 72 cm. Find the radius and the area of the semi circular park View Solution As shown in the figure diameter of outer circle is12 cm. Ratio of shaded area shaded area of upper semi circle to that of the...
a pizza slice is an example of a sector that represents afractionof a pizza. There are two types of sectors: minor and major sectors. A minor sector is a sector that is less than a semi-circle, whereas, a major sector is a sector greater than a semi-circle. ...
Semi Circle Since a semi circle is half of a circle, the area of a semi circle will be half the area of a circle. Definition of semi circle: As the name suggests, a semi circle is half of a circle. If an arc of a circle with its two ends on the diameter of a circle cuts the...
Area of a Circle Example 1 Find the area of the circle below to 1 decimal place. To find the area of the circle, we need to find the radius first. The radius is half of the diameter, so it is half of 5 = 2.5 cm. Next we need to square the radius: 2.52= 2.5 x 2.5 = 6.25...
Area of a circle given the diameter or radius Example 1: Find the area the circle with a diameter of 10 inches. Solution: Step 1:Write down the formula:A = πr2 Step 2:Change diameter to radius: Step 3:Plug in the value:A = π52= 25π ...
Area of a semi-circle = (π r²) / 2 An area measurement calculator can also be used to calculate the volume of 3D figures that come from their 2D counterparts such as cubes, pyramids and spheres from squares, triangles and circles respectively. Area measurement calculator in graphs and ...
Half of a circle’s area is the area of the semicircle. Discussion with Illustrative Examples Example 1:The relationship between the radius and diameter of a semicircle. In a semicircle, the diameter is twice the radius’s length, connecting two points on the circle and going through the cent...
A circle is a round shape, with no corners, where all radii (distance from the edge to the center) are the same. A semicircle takes the circle and cuts it in half through the diameter (a line that goes from one edge of the circle to the other side and passes through the center of...
The formula for the area of a circle is A = πr2, where r is the radius of the circle. The unit of area is the square unit, for example, m2, cm2, in2 etc. In this article, we will learn terms related to circles, like radius, diameter, perimeter, area of the circle, etc. ...