Perimeter and Area of Triangles | Ex: 20 A | Solution | Hero’s formula| Class 8 | ICSE |
This video explains Perimeter and Area of Triangles, the Area of a Triangle for class 8 of ICSE syllabus with reference to book by Salena publishers. All the solutions of the chapter 20 A are included. Hero’s formula for area of a triangle. The video includes the following:
1. find the length of altitude corresponding to the largest side of the triangle.
2. Find the area of an equilateral triangle, whose one side is given.
3. Heron’s formula for area of a triangle when the sides of the triangle are given.
4. The area of an equilateral triangle is numerically equal to its perimeter. Find its perimeter correct to 2 decimal places.
5. Use of Pythagoras theorem to find the area of a triangle.