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10-02-2021
Mathematics

contestada

A sector has an area of 50 ft sq, and a central angle of 45 degrees. Find the radius.

Respuesta :

10-02-2021

Answer:

Step-by-step explanation:

45° is 1/8 of a circle, so the area of the sector is 1/8 the area of the circle.

Area of circle = 8*50 = 400 sq ft

πr² = 400

r = √(400/π) = 20/√π ≈ 11.3 ft

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