dominicromanelli dominicromanelli

01-04-2020
Mathematics

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A circle has a sector with area 45/4 pi and central angle of 9/10 pi radians. What is the area of the circle?

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kenlingdad kenlingdad

01-04-2020

Answer:

the area of the circle: 25π

Step-by-step explanation:

45/4 π = 11.25π

9/10π = 0.9π

11.25π / 0.9π = x / 2π .... 360° = 2π

x = (11.25π x 2π) / 0.9π = 25π

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