bengallegos3743 bengallegos3743

17-09-2020
Mathematics

contestada

Circumference and Area of Circles

A circle has an area of 1256 square inches. What is the diameter of the circle. Use 7 = 3.14

O 10 in

O 20 in

O 40 in

O 60 in

Respuesta :

olasunkanmi74 olasunkanmi74

17-09-2020

Step-by-step explanation:

Area of a circle = #r^2

1256 = 3.14 × r^2

r^2 = 1256/3.14

r^2 = 400

Square root of r = 20

Diameter = 2 × r = 2 × 20 = 40 inches

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