
Resolver problemas área y perímetro de un círculo
Authored by YASNA C
Mathematics
7th Grade
Used 9+ times

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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A la pista de un circo que tiene forma circular hay que ponerle lona alrededor, si su radio mide 10 m ¿Cuántos metros de lona se necesita?
31,4 metros
68,2 metros
15,7 metros
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nelson construyó un blanco de tiro, como el que muestra la figura. Si el círculo más pequeño tiene un radio que mide 3 cm y las franjas tienen un grosor de 6 cm cada una, ¿cuál es el área del blanco completo?
65,94 cm2
5538,96 cm2
1384,74cm2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una piscina circular se desea colocar una reja. Si la piscina tiene 14 metros de diámetro, ¿cuántos metros de reja se deben comprar?
43,96 metros
21,98 metros
615,44 metros
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El cd tiene un diámetro de 10 cm y el radio de la corona interna es de 4 cm ¿Cuál es el área disponible para grabar (corona externa) que posee el CD?
78,5 cm2
50,24 cm2
28,26 cm2
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