
Quiz de Matemática
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Easy
Joziane Silva Batista
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Analisando os triângulos a seguir, sabendo que AB é paralelo a DC, então podemos afirmar que x é igual a:
x = 9,16
x = 10
x = 16,3
x = 8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sombra de um prédio, em um terreno plano, numa determinada hora do dia, mede 15 m. Nesse mesmo instante, próximo ao prédio, a sombra de um poste de altura 5 m mede 3 m. A altura do prédio, em metros, é: ________
30 m
20 m
25 m
35 m
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule os valores de x e de y nos pares de triângulos semelhantes mostrados nas figuras abaixo.
x = 5, y = 10
x = 4, y = 6
x = 7, y = 14
x = 8, y = 16
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um poste de 12 m de altura projeta uma sombra de 8 m. Qual é a altura de uma árvore que projeta uma sombra de 10 m, sob as mesmas condições de iluminação?
15 m
18 m
20 m
25 m
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se dois triângulos são semelhantes e os lados de um são 3, 4 e 5, enquanto os lados correspondentes do outro são 6, x e 10, qual é o valor de x?
9
7
6
8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um edifício de 20 m de altura projeta uma sombra de 12 m. Qual é a altura de um poste que projeta uma sombra de 6 m sob as mesmas condições de iluminação?
10 m
8 m
12 m
15 m
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o conceito principal que o Teorema de Tales aplica?
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