Quant mesura el costat b´ i el c´?
proporcionalitat geomètrica (2n)

Quiz
•
Mathematics
•
5th Grade
•
Medium
M F
Used 5+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
b´= 12 c´= 5
b´= 20 c´= 48
b´= 24 c´= 10
b´= 48 c´= 20
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Si l'ombra d'un semàfor de 4 metres d'altura mesura 7 metres, quina altura té un edifici que està al costat del semàfor i que produeix una ombra de 28 metres a la mateixa hora del dia?
45,5 metres
49 metres
No es pot saber, falta alguna dada.
16 metres
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Si una pista de basquet està dibuixada a una escala de 1/400, i mesura 6,75 cm de llarg en el dibuix, en la realitat mesura:
25,5 metres
28 metres
27 metres
30 metres
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
En la figura adjunta Quin és el valor de x?
12
6,75
5,33
18
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Un rectàngle mesura 5 cm de llarg per 3 d'ample.
Quines mesures tindrà altre rectàngle semblant a l'anterior sabent que la raó de semblança és 2,5?
12,5 cm de llarg i 7,5 cm d'ample
12 cm de llarg i 7 cm d'ample
No es pot calcular. falta una dada
10 cm de llarg i 6 cm d'ample
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Aplicant el teorema de Thales, l'altura de l'edifici és:
8 metres
10 metres
12 metres
18 metres
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcula la "x"
5
7
9
6
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