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A catheter of a right triangle measures 30cm. The hypotenuse of the triangle measures 2cm more than double the measurement of the other catheter. What is the area of the triangle

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Answer to a math question A catheter of a right triangle measures 30cm. The hypotenuse of the triangle measures 2cm more than double the measurement of the other catheter. What is the area of the triangle

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Gerhard
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89 Answers
Let the measurement of one catheter be x cm. According to the given information, the other catheter is 30 cm, and the hypotenuse is 2x+2 cm.

Using the Pythagorean theorem, we have:
x^2 + 30^2 = (2x + 2)^2
x^2 + 900 = 4x^2 + 8x + 4
3x^2 + 8x - 896 = 0

Solving the quadratic equation using the formula x = \frac{{-b \pm \sqrt{{b^2 - 4ac}}}}{2a} where a = 3, b = 8, and c = -896, we find:
x = \frac{{-8 \pm \sqrt{{8^2 - 4*3*(-896)}}}}{2*3}
x = \frac{{-8 \pm \sqrt{{64 + 10752}}}}{6}
x = \frac{{-8 \pm \sqrt{{10816}}}}{6}
x = \frac{{-8 \pm 104}}{6}

Therefore, the possible values of x are:
1. x = \frac{{-8 + 104}}{6} = \frac{{96}}{6} = 16
2. x = \frac{{-8 - 104}}{6} = \frac{{-112}}{6} = -18.7 (discarded as it is not a valid measurement)

So, the measurement of one catheter is 16 cm, the other catheter is 30 cm, and the hypotenuse is 2(16) + 2 = 34 cm.

The area of the triangle is given by:
A = \frac{1}{2} \times \text{Base} \times \text{Height}
A = \frac{1}{2} \times 16 \times 30
A = 240 \, \text{cm}^2

\boxed{240 \, \text{cm}^2} is the area of the triangle.

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