The sides of the triangle ABC are equal to 9.5 and 6 cm. Find the area of the triangle ABC.
September 3, 2021 | education
| From the condition it is known that the sides of the triangle are 9, 5 and 6 cm. And we need to find the area of the triangle.
To find the area of a triangle, apply Heron’s formula. Let’s remember the formula:
S = √p (p – a) (p – b) (p – c), where p = (a + b + c) / 2 half perimeter.
We start by calculating the floor perimeter:
p = (9 + 5 + 6) / 2 = 20/2 = 10 cm.
Next, we substitute the values into the formula and calculate:
S = √ (10 * (10 – 9) * (10 – 5) * (10 – 6)) = √ (10 * 1 * 5 * 4) = √200 = 10√2 cm ^ 2 area of a triangle.
Answer: 10√2 cm ^ 2.
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