
semelhança de triângulos
Authored by EVANDRO GIRARDI
Mathematics
9th Grade
Used 12+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sabemos que os triângulos abaixo são semelhantes, nessas condições calcule os valores de x e y:
x = 10 e y = 12
x = 12 e y = 10
x = 10 e y = 10
x = 12e y = 12
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Na imagem a seguir, é possível perceber dois triângulos que compartilham parte de dois lados. Sabendo que os segmentos BA e DE são paralelos, qual a medida de x?
x = 200
x = 225
x = 250
x = 275
x = 300
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A sombra de um prédio, em um terreno plano, em uma 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:
25
29
30
31
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Podemos afirmar que dois triângulos são semelhantes pois dois ângulos correspondentes são congruentes?
SIM
NÃO
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a medida do segmento BC?
2
3
4
5
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Na figura estão representados os triângulos rectângulos [ABC] e [ADE]. sabendo que os comprimentos de AD=100m, BD=400m e DE=80m, determine a que altura se encontra o avião?
440
430
400
480
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sendo as retas r e s paralelas e t uma reta transversal a estas, determine os valores de a e b.
a = 35° e
b = 145°
a = 90° e
b = 180°
a = 45° e
b = 135°
a = 135° e
b = 45°
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