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quester [9]
2 years ago
5

Find the area of the following triangle. Show each of the math steps that you use to find the area. Then explain how to go about

finding the area of this particular triangle (explain each one of the steps that you showed with your math).
100 POINTS IF YOU ANSWER CORRECTLY AND ILL GIVE BRAINLIEST

Mathematics
2 answers:
Diano4ka-milaya [45]2 years ago
5 0

Semi perimeter:-

\\ \rm\rightarrowtail s=\dfrac{a+b+c}{2}

\\ \rm\rightarrowtail s=\dfrac{1.8+2.4+3}{2}

\\ \rm\rightarrowtail s=\dfrac{7.2}{2}=3.6cm

Apply heron s formula

Area:-

\\ \rm\rightarrowtail \sqrt{s(s-a)(s-b)(s-c)}

\\ \rm\rightarrowtail \sqrt{3.6(3.6-1.8)(3.6-3)(3.6-2.4)}

\\ \rm\rightarrowtail \sqrt{3.6(1.8)(0.6)(1.2)}

\\ \rm\rightarrowtail \sqrt{4.6656}

\\ \rm\rightarrowtail 2.16cm^2

german2 years ago
5 0

Answer:

\sf Area \ of \ a \ Triangle=\dfrac12bh

(where b is the base of the triangle and h is the height)

Given:

  • base = 2.4 cm
  • height = 1.8 cm

Substitute the given values into the formula:

\sf \implies Area=\dfrac12 \cdot 2.4 \cdot  1.8

               \sf =2.16 \ cm^2

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Step-by-step explanation:

The given function is :

f(x)=x^2-5x+ 5

(a) To find f(9), put x = 9 in the above expression.

f(9)=9^2-5(9)+ 5=41

(b) To find f(x+7), put x = x+7 in the above expression.

f(x+7)=(x+7)^2-5(x+7)+ 5\\\\=x^2+14x+49-5x-35+5\\\\=x^2+9x+19

(c) To find f(-x), put x = -x in the above expression.

f(-x)=(-x)^2-5(-x)+ 5\\\\=x^2+5x+5

Hence, this is the required solution.

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Diano4ka-milaya [45]

Answer: I think the last option is the correct answer.

Step-by-step explanation:

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