
Teorema de Pitágoras
Authored by FERNANDA CRISTINI MOREIRA RODRIGUES
Mathematics
9th Grade

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Num triângulo retângulo, os catetos medem 3 cm e 4cm. Qual é o comprimento da hipotenusa?
3 cm
4 cm
5 cm
6 cm
Answer explanation
Resolução:
1. Aplicar o Teorema de Pitágoras: c² = a² + b²
2. Substituir os valores: c² = 3² + 4²
3. Calcular: c² = 9 + 16
4. Simplificar: c² = 25
5. Raiz quadrada: c = 5 cm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um triângulo retângulo tem hipotenusa de 10 cm e um cateto de 6 cm. Qual é o comprimento do outro cateto?
5 cm
6 cm
7 cm
8 cm
Answer explanation
Resolução:
1. Aplicar o Teorema de Pitágoras: c² = a² + b²
2. Substituir os valores: 10² = 6² + b²
3. Calcular: 100 = 36 + b²
4. Simplificar: b² = 64
5. Raiz quadrada: b = 8 cm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Num triângulo retângulo, a hipotenusa mede 8 cm e um cateto mede 5 cm. Qual é o comprimento do outro cateto?
Valor aproximado
5,24 cm
6,24 cm
7,24 cm
8,24 cm
Answer explanation
Resolução:
1. Aplicar o Teorema de Pitágoras: c² = a² + b²
2. Substituir os valores: 8² = 5² + b²
3. Calcular: 64 = 25 + b²
4. Simplificar: b² = 39
5. Raiz quadrada: b ≈ 6,24 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dois catetos de um triângulo retângulo medem 4 cm e 3 cm. Qual é o comprimento da hipotenusa?
3 cm
4 cm
5 cm
6 cm
Answer explanation
Resolução:
1. Aplicar o Teorema de Pitágoras: c² = a² + b²
2. Substituir os valores: c² = 4² + 3²
3. Calcular: c² = 16 + 9
4. Simplificar: c² = 25
5. Raiz quadrada: c = 5 cm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um triângulo retângulo tem hipotenusa de 12 cm e um cateto de 9 cm. Qual é o comprimento do outro cateto?
5,94
6,94
7,94
8,94
Answer explanation
Resolução:
1. Aplicar o Teorema de Pitágoras: c² = a² + b²
2. Substituir os valores: 12² = 9² + b²
3. Calcular: 144 = 81 + b²
4. Simplificar: b² = 63
5. Raiz quadrada: b ≈ 7,94 cm
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