selecting the point from co-ordinate plane and checking which type of triangle and find the area of triangle using herons formula

2 thoughts on “selecting the point from co-ordinate plane and checking which type of triangle and find the area of triangle using herons formula”

1. [tex]\large{\underline{\underline{\tt{\red{Answer}}}}}[/tex]

   Methods to Find the Area of a Triangle

   Area of a triangle can be found using three different methods. The three different methods are discussed below

   Method 1

   When the base and altitude of the triangle are given.

   Area of the triangle, A = bh/2 square units

   Where b and h are base and altitude of the triangle, respectively.

   Method 2

   When the length of three sides of the triangle are given, the area of a triangle can be found using the Heron’s formula.

   Therefore, the area of the triangle is calculated using the equation,

   A = [tex]\tt\sqrt{s(s-a) (s-b) (s-c)}

   s(s−a)(s−b)(s−c)[/tex]

   Where a, b, c are the side lengths of the triangle and s is the semi perimeter

   The value of s is found using the formula

   [tex]\tt{ s = \frac{a+b+c}{2}}[/tex]

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2. Answer:

   Balance the following equations:

   (a) CH4 + O2 → CO2 + H2O

   (b) Na2O + H2O → NaOH

   (c) Ca(OH)2 + HCI → CaCI2 + H2O

   (d) Na + H2o → NaOH + H2

   (e) Na + CI2 → NaCI

   please help me

   Reply