Question

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

Answer 1

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

Answer 2

$\large{\underline{\underline{\tt{\red{Answer}}}}}$

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 = $\tt\sqrt{s(s-a) (s-b) (s-c)} </p><p>s(s−a)(s−b)(s−c)$

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

$\tt{ s = \frac{a+b+c}{2}}$