
Semelhança de triângulos
Authored by Jarlene Fonseca
Mathematics
9th Grade
Used 39+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Às de uma manhã ensolarada, as sombras de um edifício e de um poste de metros de altura foram medidas ao mesmo tempo. Foram encontrados metros e metros, respectivamente, conforme ilustração abaixo.
De acordo com as informações acima, a altura do prédio é de
a) 12m
b) 18m
c) 16m
d) 14m
e) 20m
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A sombra de uma Torre mede de comprimento. Na mesma hora, a sombra de um poste de de altura é de comprimento. Qual é a altura da torre?
a) 95m
b) 100m
c) 105m
d) 110m
e) 120m
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
O valor do lado de um quadrado inscrito em um triângulo retângulo, conforme o esboço mostrado na figura, é
a) 10
b) 8
c) 6
d) 4
e) 2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Os lados de um triângulo medem, respectivamente, 7 cm, 9 cm e 14 cm. Qual é o perímetro do triângulo semelhante ao dado cujo lado maior é de 21 cm?
a) 45m
b) 55m
c) 60m
d) 75m
e) 80m
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Na figura a seguir, os triângulos são semelhantes. Então, o valor de x é:
a) 10
b) 11
c) 12
d) 13
e) 14
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Na figura a seguir, o valor de x é:
a) 18m
b) 20m
c) 22m
d) 24m
e) 25m
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