Question
Find the area of a sector with the given central angle θ in a circle of radius r.
θ = 90°, r = 6 cm
θ = 90°, r = 6 cm
Answers
Kuai
A = 1/2r^2 θ
A = 1/2(6)^2(pi/2)
A = 1/2(36)(pi/2)
A = 9pi cm^2
A = 1/2(6)^2(pi/2)
A = 1/2(36)(pi/2)
A = 9pi cm^2