Answer:
a) φ = 4/7
b) φ = 4
Step-by-step explanation:
The relationship between radius, angle, and arc length is ...
a = r·φ . . . . . φ in radians
You want to find the angle φ, so you can divide this equation by r:
φ = a/r
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a) φ = a/r = (8 cm)/(14 cm) = 8/14
φ = 4/7 radians
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b) φ = a/r = (16 cm)/(4 cm) = 16/4
φ = 4 radians
