Learn Lessons with Practice Worksheets on Topic Area Perimeter

What are the formulas and how to calculate area and circumference of circle and semi circle? Formulas of length of arc, area of sector and segment.

Formulas and calculations of perimeter and area of quadrilaterals like parallelogram, rectangle, square, rhombus and trapezium.

Area and perimeter of a triangle, their units of measurement. How are they calculated and related formulae for isosceles and equilateral triangle?