find the area of triangle ABC.
Give your answer correct to one decimal place. show all the working out.
my answer that I searched for ended in π​

find the area of triangle ABC Give your answer correct to one decimal place show all the working out my answer that I searched for ended in π class=


Answer :

Answer:

a = 34.2 cm^2

Step-by-step explanation:

To solve for the area of a triangle when given 3 different sides, we can use Heron's formula.

Where:

s (semi-perimeter) = (a + b + c) / 2

a = sqrt [(s(s-a)(s-b)(s-c)]

In this case, a = 8, b = 10, c = 9

Solve for s.

s = (a + b + c)/2

s = (8 + 10 + 9)2

s = 27/2

Plug it in and solve for the area.

a = sqrt [(s(s-a)(s-b)(s-c)]

a = sqrt [(27/2(27/2-8)(27/2-10)(27/2-9)]

a = 34.197

round to one decimal place

a = 34.2

Answer:

34.2 square centimeters

Step-by-step explanation:

Please find the attached answer

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