How long is the arc intercepted by central angle of pi over 2 rad in a circle with radius of 4.5 cm round your answer to the nearest 10th use 3.14 for pie

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 = 4.5 cm

180 degrees = π radians

1 radian = 180/π

2 radians = 2 × 180/π = 360/π degrees

Therefore,

Length of arc = (360/π) /360 × 2 × π × 4.5

Length of arc = 9 cm

option: d is correct

step-by-step explanation:

add 5 subtract 1

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