Question

how 100.48 cm² and 44.56 cm came
please help me by answering​

Answer 1

Answer:

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Step-by-step explanation:

Length of the arc l = θ°/360° × 2πr units l = 45°/360° × 2 × 3.14 × 16 cm l = 1/8 × 2 × 3.14 × 16 cm l = 12.56 cm Area of the sector = θ°/360° × πr2 A = 45°/360° × 3.14 × 16 × 16 A = 100.48 cm2 Perimeter of the sector P = l + 2r units P = 12.56 + 2(16) cm P = 44.56 cm (ii) Central angle 120°, d = 12.6 cm ∴ r = 12.62 cm r = 6.3 cm Length of the arc Area of the sector missing Perimeter of the sector P = l + 2r units P = 6.28 + 2(5) cm P = 6.28 + 10 cm P = 16.28 cmRead more on Sarthaks.com - https://www.sarthaks.com/977976/for-the-sectors-with-given-measures-find-the-length-of-the-arc-area-and-perimeter-3-14