Questions: Considerando um triângulo retângulo ABC com base igual a 4 cm e altura igual a 7 cm conforme figura a seguir, o valor da hipotenusa desse triângulo é:

Considerando um triângulo retângulo ABC com base igual a 4 cm e altura igual a 7 cm conforme figura a seguir, o valor da hipotenusa desse triângulo é:
Transcript text: Considerando um triângulo retângulo $A B C$ com base igual a 4 cm e altura igual a 7 cm conforme figura a seguir, o valor da hipotenusa desse triângulo é:
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Solution

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Solution Steps

Step 1: Identify the given values

The problem provides the base and height of a right triangle:

  • Base (BC) = 4 cm
  • Height (AB) = 7 cm
Step 2: Apply the Pythagorean theorem

For a right triangle, the Pythagorean theorem states: \[ c^2 = a^2 + b^2 \] where \( c \) is the hypotenuse, and \( a \) and \( b \) are the other two sides.

Step 3: Substitute the given values into the theorem

Substitute \( a = 4 \) cm and \( b = 7 \) cm into the equation: \[ c^2 = 4^2 + 7^2 \] \[ c^2 = 16 + 49 \]

Step 4: Calculate the sum

\[ c^2 = 65 \]

Step 5: Find the square root of the sum

\[ c = \sqrt{65} \] \[ c \approx 8.06 \]

Final Answer

The hypotenuse of the triangle is approximately 8.06 cm.

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