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Mathematics, 26.01.2020 04:31 sovprints
derive the formula for the area of a sector, and then use it to choose all that are correct.
1.
radius = 5 cm
angle = 120°
area = 26.2 cm2
2.
radius = 4 cm
angle = 105°
area = 16.7 cm2
3.
radius = 6 cm
angle = 85°
area = 23.7 cm2
4.
radius = 7
angle = 75°
area = 32.1 cm2
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