Questions: In a circle of radius 7 miles, the length of the arc that subtends a central angle of 5 radians is miles.

In a circle of radius 7 miles, the length of the arc that subtends a central angle of 5 radians is miles.
Transcript text: In a circle of radius 7 miles, the length of the arc that subtends a central angle of 5 radians is $\square$ miles.
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Solution

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Solution Steps

To find the length of the arc in a circle, we can use the formula for the arc length, which is given by Arc Length=θ×r \text{Arc Length} = \theta \times r , where θ \theta is the central angle in radians and r r is the radius of the circle. Given the radius and the central angle, we can directly apply this formula.

Step 1: Identify the Given Values

We are given the radius of the circle r=7 r = 7 miles and the central angle θ=5 \theta = 5 radians.

Step 2: Use the Arc Length Formula

The formula for the length of an arc in a circle is: Arc Length=θ×r \text{Arc Length} = \theta \times r

Step 3: Substitute the Given Values

Substitute θ=5 \theta = 5 radians and r=7 r = 7 miles into the formula: Arc Length=5×7 \text{Arc Length} = 5 \times 7

Step 4: Calculate the Arc Length

Perform the multiplication: Arc Length=35 miles \text{Arc Length} = 35 \text{ miles}

Final Answer

35 miles\boxed{35 \text{ miles}}

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