1. The length of the safety rail = Arc length is: 15.7 yd
2. The area of the deck = area of sector is: 78.5 yd²
What is the Area of a Sector?
Area of sector = ∅/360 × πr²
What is the Length of an Arc?
Arc length = ∅/360 × 2πr
1. Length of the safety rail = Arc length = ∅/360 × 2πr
= 90/360 × 2π(10)
= 15.7 yd
2. Area of the deck = area of sector = ∅/360 × πr²
= 90/360 × π(10²)
= 78.5 yd²
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