Browsing Tag

Circles

How To Find The Area Of A Sector Of A Circle

How To Find The Area Of A Sector Of A Circle If the arc subtends an angle of θ at the centre, then its arc length is ( frac{text{ }!!theta!!text{ }}{text{180}}text{ }!!times!!text{ }!!pi!!text{ r} ) Hence, the arc length ‘l’ of a sector of…

Area of Polygons and Circles

Area of Polygons and CirclesArea formulas can be found at “Reference Table for Areas” Let’s pick up some hints for those more challenging problems involving area.Regular polygons have a center and a radius (coinciding with their…

How To Calculate The Perimeter Of A Circle

Perimeter Of A CircleCircumference of a CircleCircumference means, ‘the perimeter of a circle’. The word has been derived from the Latin word circumferre means to carry around. The distance around a circular region is also known as its…

How To Calculate The Area Of A Circle

How To Calculate The Area Of A CircleA circle is the locus of a point which moves in a plane in such a way that its distance from a fixed point always remains same. The fixed point is called the centre and the given constant distance is…

Theorems and Postulates for Geometry

Theorems and Postulates for GeometryThis is a partial listing of the more popular theorems, postulates and properties needed when working with Euclidean proofs. You need to have a thorough understanding of these items.General:Reflexive…

Theorems and Postulates for Geometry

Theorems and Postulates for GeometryThis is a partial listing of the more popular theorems, postulates and properties needed when working with Euclidean proofs. You need to have a thorough understanding of these items.General:Reflexive…

How To Find The Area Of A Segment Of A Circle

How To Find The Area Of A Segment Of A CircleArea of the sector OPRQ = Area of the segment PRQ + Area of ∆OPQ ⇒  Area of  segment PRQ = (left{ frac{pi }{360}times theta -sin frac{theta }{2}cos frac{theta }{2} right} )Read More:Parts of a…