aileenlopezz
09.09.2021 •
Mathematics
Question 3
d. A car tire with radius 8 inches rotates at 42 rpm. Find the velocity of
the car in mph. Round answer to nearest whole number.
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Ответ:
Length of arc AB = 8.37m
Step-by-step explanation:
The formula for determining the length of an arc is expressed as
Length of arc = θ/360 × 2πr
Where
θ represents the central angle.
r represents the radius of the circle.
π is a constant whose value is 3.14
From the information given,
Radius, r = 8 m
Angle subtended by the arc length of AB, θ = 60 degrees
Therefore,
Length of arc AB = 60/360 × 2 × 3.14 × 8
Length of arc AB = 8.37m rounded up to the nearest hundredth.