

Área sector circular
Presentation
•
Mathematics
•
7th Grade
•
Easy
Andres Araya
Used 1+ times
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4 Slides • 1 Question
1
Pon a prueba lo aprendido
Área sector circular

2
Fill in the Blanks
Se tiene una pizza circular que se ha dividido en 6 partes iguales. Si el diámetro de la pizza es 60 cm ¿Cuál es el área del sector correspondiente a un trozo de pizza? Considere pi= 3
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3
Solución
El trozo representa la sexta parte de la pizza, es decir, el ángulo central es de 60°
Al calcular el área del sector circular de un trozo de pizza, se tiene: Asector= 360°π⋅302⋅60°cm2 = 150π cm2 = 450 cm2
4
Problema
Osvaldo ha inscrito una señal de disco pare, que corresponde a un octágono regular cuyos lados miden 20 cm, en un círculo de 60 cm de diámetro. ¿Cuál es el área del segmento circular de color verde?
5
Solución
Como el diámetro del círculo es de 60cm, su radio es 30cm
Para calcular el área resolveremos la ecuación: Asegmentocircular=Asector - Atriángulo
Asegmentocircular= 360°302⋅π⋅45°−222⋅25=112,5π−275=62,5cm2
Pon a prueba lo aprendido
Área sector circular

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