In circle M with m, angle, L, M, N, equals, 46, degreesm∠LMN=46 ∘ and L, M, equals, 14LM=14 units, find the length of arc, L, N LN⌢ . Round to the nearest hundredth.
Question
In circle M with m, angle, L, M, N, equals, 46, degreesm∠LMN=46 ∘ and L, M, equals, 14LM=14 units, find the length of arc, L, N LN⌢ . Round to the nearest hundredth.
Solution 1
To find the length of arc LN, we need to use the formula for the length of an arc, which is:
Arc length = (m∠ / 360) * 2πr
Where:
- m∠ is the measure of the angle in degrees, which is 46 degrees in this case.
- r is the radius of the circle, which is 14 units in this case.
So, substituting the given values into the formula, we get:
Arc length = (46 / 360) * 2π * 14
Now, we just need to calculate the above expression to find the length of arc LN.
Arc length = 0.12778 * 2 * 3.1416 * 14
Arc length = 11.30973 units
So, the length of arc LN is approximately 11.31 units when rounded to the nearest hundredth.
Solution 2
To find the length of arc LN, we need to use the formula for the length of an arc, which is:
Arc length = (m∠ / 360) * 2πr
Where:
- m∠ is the measure of the angle subtended by the arc at the center of the circle, in degrees
- r is the radius of the circle
Given that m∠LMN = 46 degrees and LM = 14 units (which is the radius of the circle), we can substitute these values into the formula:
Arc length = (46 / 360) * 2π * 14
Now, we just need to calculate the above expression to find the length of arc LN.
Arc length = 0.12778 * 2 * 3.14159 * 14 = 11.30973 units
Rounding to the nearest hundredth, the length of arc LN is approximately 11.31 units.
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