A circle is defined by a point, known as the centre, and a constant distance from this point, known as the radius. The total length of the boundary of the circle is referred to as the circumference. A significant aspect of circles in geometry is the area they enclose. In this article,...
Area is a measure of the amount of space inside a shape. It is measured in squares, so it can be square inches (in2), square cm (cm2), square feet(ft2), etc. How to find the Area of a Circle The formula for the area of a circle is:A = πr2, where r is the radius of...
protractors while constructinggeometric shapes.In thismathematicsarticle we shall learn about the definition of a semi circle in detail along with its different formulae related to area, perimeter, etc. We shall also learn about the symmetry in a semi circle and some solved examples for better ...
So, the area of the circle is:Area=616cm2 Step 2: Calculate the Circumference of the CircleThe formula for the circumference C of a circle is given by:C=2πr Substituting the values into the formula:C=2×227×14 Calculating:C=447×14 To simplify:C=44×147 Calculating 44×147:44×14...
Circle Area = π× r2 r = radius Ellipse Area = πab Sector Area = ½ × r2×θ r = radiusθ = angle in radians Note: h is at right angles to b Example: What is the area of this rectangle? The formula is: Area = w × h w = width h = height We know w = 5 an...
What is the formula for the area of all shapes? The formulas to find the areas of a few shapes are given below: Area of circle = πr^2, where r is the radius of the circle. Area of triangle = (1/2)bh, where b is the base and h is the triangle’s height. ...
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 ...
The area of a quarter circle is the area of one-fourth part of the whole area of the circle. Hence, the area of quarter circle is 14 of the area of that circle.
A semi-circle is a half a circle. The area of a semi-circle is equal to half of the area of a circle with the same radius. Area of a Semi-Circle Formula So the area of a semicircle is ½ πr2, where r is the radius of the circle. To find the area of a semi circle, ...
How to find the area of a rectangle In order to find the area of a rectangle: Identify the length and the width Write down the formula for the area of a rectangle Substitute the given values and calculate Write down your final answer with units squared How to find the area of a ...