November 10, 2008

This resource has been contributed by Winpossible, and can also be accessed on their website by clicking here -
Getting Started - Area of Polygons and Circles.

This mini-lesson content introduces and walks you through the basic concepts of area of polygons. You'll learn it with the help of some examples, practice questions and quizzes with solution, using video explanations by the instructor that brings in an element of real-class room experience. The area of a figure measures the size of the region enclosed by the figure. This is usually expressed in terms of some square unit i.e. square meters, square inches, or square kilometers etc. To find the area of a square, we count the squares inside the closed figure. But to make it simpler, you can use area formulas instead. Every polygon has a formula for finding its area. For example, if we are given the base of the triangle (b) and the perpendicular height (h); to calculate area use the formula:

1/2 x base(b) x height(h)

This mini-lesson content introduces and walks you through the basic concepts of area of polygons. You'll learn it with the help of some examples, practice questions and quizzes with solution, using video explanations by the instructor that brings in an element of real-class room experience. The area of a figure measures the size of the region enclosed by the figure. This is usually expressed in terms of some square unit i.e. square meters, square inches, or square kilometers etc. To find the area of a square, we count the squares inside the closed figure. But to make it simpler, you can use area formulas instead. Every polygon has a formula for finding its area. For example, if we are given the base of the triangle (b) and the perpendicular height (h); to calculate area use the formula:

1/2 x base(b) x height(h)

This FREE mini-lesson is a part of Winpossible's online course that covers all topics within Geometry. Click on the video below to go through it. If you like it, you can buy our online course in Geometry by clicking here.

- Mathematics > General
- Mathematics > Geometry
- Education > General

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Give an informal argument for the formulas for the circumference of a circle, area of a circle, volume of a cylinder, pyramid, and cone.

use models to determine the approximate formulas for the circumference and area of a circle and connect the models to the actual formulas.

determine the circumference and area of circles;