Answer:
Land Reclamation Quick Check
1 the recovery of land that has been degraded by mining operations
2 creating a community garden, building a golf course and golf club
3 building a golf course and golf club
Explanation:
electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus. According to the older shell atomic model, electrons occupy several levels from the first shell nearest the nucleus, K, through the seventh shell, Q, farthest from the nucleus.
Assuming the radius is 5.4m. The exact length of an arc formed by a central angle measuring 60° is 1.8π or 5.65.
<h3>Length of an arc</h3>
Arc length of the circle=(theta)/360×pi×diameter
Diameter=2×radius
Where:
radius=5.4
Diameter=2×5.4=10.8
theta=60°
Arc length:
Arc length=60°/360°×π×10.8
Arc length=5.6548667765 or 1.8π
Inconclusion the exact length of an arc formed by a central angle measuring 60° is 1.8π or 5.65.
Learn more about length of an arc here:brainly.com/question/3955907
