jazzyreaves371 jazzyreaves371

23-06-2017
Mathematics

contestada

What is the radius of a circle with an area of 32.1 square feet?

A. 5.23 ft.
B. 3.20 ft.
C. 4.75 ft.
D. 10.22 ft.

Respuesta :

FattyMcHippo FattyMcHippo

23-06-2017

B..............................

Answer Link

Banabanana Banabanana

23-06-2017

A = π·r² ⇒
r²= A/π = 32.1/3.14 ≈ 10.22 ⇒
r = √10.22 ≈ 3.20 ft.

Answer: B. 3.20 ft.

Answer Link

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