2D3D Companion

Types of Users:There are two categories of users in this app, the public users and the private users. Everyone who downloads and activates this app is a public user and automatically has access to this app.A public user can install this app from play store for $1.99 only for a life time.The App has the following functionalities.Units Conversion: It converts number from one unit to another unit, example degree Celsius to Kelvin, Kilogram to gram, Inches to Feet, Kilometer to Meter etc.BMI Calculator: Users can use the app to check their Body Mass Index BMI to stay healthy always.Polygon: It calculates the sum of interior angles, each interior angle, each exterior angle and sum of exterior angles of any regular polygon.Pythagoras: It checks if 3 numbers are Pythagoras Triples. When you enter any two of these: hypotenus, opposite and adjacent. You should get a whole number value to check for Pythagoras triples.Percentage: It calculates the required percentage of any given amount. For example 25% of $5 000 000 is $1 250 000.Percentage Error: It calculates percentage error using actual value and measured value.Arithmetic Progression(AP): It calculates the nth term of an AP.Geometric Progression(GP): It calculates the nth term of a GP.Parallelogram: It calculates the area of a Parallelogram.Simple Interest: It calculates simple interest given the principal, rate and time.Sphere: It calculates the area and volume of a sphere.Square: It calculates the area and perimeter of a square.Rectangle: It calculates the area and perimeter of a rectangle.Hemisphere: It calculates the curved surface area, total surface area and volume of a hemisphere.Cylinder: It calculates the curved surface area, total surface area and volume of a cylinder.Cube: It calculates the area and volume of a cube.Cuboid: It calculates the area and volume of a cuboid.Quadratic Formula: It calculates the roots of quadratic equations.Triangular Based Pyramid: It calculates the base area and volume of a triangular based pyramid.Square Based Pyramid: It calculates the base area and volume of a square based pyramid.Rectangular Based Pyramid: It calculates the base area and volume of a rectangular based pyramid.Triangular Based Prism: It calculates the base area and volume of a triangular based prism.Area of a Trapezium: It calculates the area of a trapezium.Area of a Triangle: It calculates the area of a triangle given 3 sides or 2 sides or an angle and 2 sides.Area of a circle: It calculates area and circumference of a circle.Rhombus: It calculates the area of a rhombus.Length of an Arc: It calculates the length of an arc of a circle.Cone: It calculates the curved surface area, total surface area and volume of a cone.Sector of a Circle: It calculates the area and perimeter of a sector of a circle.Segment of a Circle: It calculates the area and perimeter of a segment of a circle.Gradient of a Line: It calculates the gradient, distance between 2 points, mid-point of x and y respectively.Numbers Bases: It converts number in base ten (denary) to binary, octal and hexadecimal.