I Did It>Perimeter and Area>Exercise 13.2>Q 26 We know how to calculate the circumference or perimeter of a circle. Let’s watch how to calculate the perimeter of a closed semicircular figure in this video. You must have used a protractor to measure angles in your geometry classes. Do you know how to calculate the perimeter of it? Learn in this video. We know that if all sides of a triangle are equal, then it is an equilateral triangle. Is there a formula to find the area of an equilateral triangle? Let's... Let's groove along and sing the Area Song with Teacher Giraffe! After grooving with Teacher Giraffe, you'll always remember this concept! Click on the play b... Most countries use the metric system, but there are quite a few countries that have not made that change. The metric system is a lot better than the imperial... Soldiers are told to check the perimeter of the base camp. Do you know what the term “perimeter” means? This video will help you understand the concept of th... |