3 years ago

4)

Mathematics

2 answers:

irakobra [83]3 years ago

7 0

X = 42 - 19, so A - x = 23

finlep [7]3 years ago

5 0

Answer:

Step-by-step explanation:

do 42-19 helps me solve it because if you do subtract it most the time I think it will work

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kramer

Answer:

Step-by-step explanation:

Here it's given that ,

$\sf\red{\longrightarrow} A=\sqrt{s(s-a)(s-b)(s-c)}$

Also ,

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And we need to find out the value of A , when

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So , on substituting the respective values to find s we have ,

$\sf\red{\longrightarrow} s =\dfrac{3+4+5}{2}=\dfrac{12}{2}=\bf{6}$

Now let's find out A as ,

$\sf\red{\longrightarrow} A = \sqrt{6(6-3)(6-4)(6-5)} \\$

$\sf\red{\longrightarrow}A =\sqrt{6 * 3 * 2 * 1}\\$

$\sf\red{\longrightarrow} A = \sqrt{3^2 * 2^2 *1^2}\\$

$\sf\red{\longrightarrow}A = 3*2\\$

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