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eduard
3 years ago
15

What is the length of arc ab?

Mathematics
2 answers:
Anika [276]3 years ago
6 0

6 pie cm

Step-by-step explanation:

7nadin3 [17]3 years ago
4 0
Before we do anything we must convert radians to degrees using a table. pi/3 radians equals 60 degrees, meaning the central angle of this arc is 60 degrees. This also tells us that the length of the arc is 1/6 of the whole circumference. All we have to do now is calculate the circumference which is diameter x pi.

arc = 1/6 pi x 36
arc = 6pi cm

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2. Janine walks on a circular track whose radius is 60 meters. If she walks a total of 100 meters, which of the
katrin2010 [14]

Answer:

0.53πrad

Explanations:

Given the radius of the circular track = 60metres

If she walks a total of 100 meters, the length of the arc of the circle = 100metres

To calculate the radian angle she rotates about the center of the track, we will use the formula for calculating the length of an arc

L = θ/360° × 2πr

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