Introduction to Heron's Formula.

Introduction to P Block

Trigonometry. Trigonometric Functions. Introduction . Angles Trigonometric Functions Of Sum And Difference . Trigonometric Equations. Introduction to trigonometry.

A traffic signal board, indicating 'SCHOOL AHEAD' , is an equilateral triangle with side a. Find the area of the signal board, using Heron's formula. If its perimeter is 180 cm, what will be the area of the signal board?

A traffic signal board, indicating SCHOOL AHEAD, is an equilateral triangle with side a ' . Find the area of the signal board, using Herons formula. If its perimeter is 180 c m ,\ what will be the area of the signal board?

Introduction of Probability