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A circular silver tray has a diameter of 28 centimeters. What is the area of the top surface of the tray?

Respuesta :

allstarpitcher923
Use the formula: A = pi*(r^2). However, we are given the diameter, which is 28 centimeters. The radius, r, is half of the diameter. 28/2 = 14, so the radius is 14 cm. Plugging this into the formula for area... A = pi*(14^2) ≈ 3.14*196 ≈ 615.44 cm^2