Els catets d'un triangle rectangle fan 30 mm i 42 mm. Calcula la seva àrea.

Àrees i perímetres RM

Quiz
•
Mathematics
•
8th Grade
•
Medium
Xavi Riera
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
672 mm2
630 mm2
1260 mm2
12 mm2
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calcula l'àrea del trapezi rectangle de la figura.
12'5 cm2
30 cm2
27 cm2
15 cm2
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Determina l'àrea d'un octògon regular si el seu costat fa 2 metres i l'apotema 2'41 m.
19'28 m2
2'41 m2
14'46 m2
4'82 m2
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Troba el perímetre d'un pentàgon de 4'5 cm de costat.
22'5 cm2
22'5 cm
27 cm2
20'25 cm2
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Un pastor vol construir un tancat per a les seves ovelles amb forma d’hexàgon regular. Si fa servir 7,2 dam de tanca, quants metres mesurarà cada costat del tancat?
12 metres.
1'2 decàmetres.
51'84 metres
36 metres
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calcula l'àrea d'un rectangle que té una base de 4'5 metres i el doble d'altura.
40'5 m2
13'5 m2
5'5 m2
27 m2
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calcula l'àrea del rombe que té 15 cm de diagonal major i 7 cm de diagonal menor.
11 cm2
52'5 cm2
4 cm2
55 cm2
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