A sector has central angle 144° and radius 7 cm. Another sector with the same radius has a central angle 4π/5 radians. What is the ratio of their areas?

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Accepted Answer

1. Convert degrees to radians: $144^\circ = 144\pi/180 = 4\pi/5$.
2. Area formula for a sector: $A=	frac12 r^2	heta$.
3. Both sectors have the same radius and the same angle $	heta=4\pi/5$.
4. So their areas are equal and the ratio is $1:1$.
FINAL_ANSWER: a

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