4 cm because pi*42 = 16 pi cm2
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Circumference = 3.2pi cm => diameter = 3.2 cm => radius = 1.6 cm.Therefore, area = pi*r2 = 1.62*pi = 2.56*pi cm2 = 8.04 cm2 approx.Circumference = 3.2pi cm => diameter = 3.2 cm => radius = 1.6 cm.Therefore, area = pi*r2 = 1.62*pi = 2.56*pi cm2 = 8.04 cm2 approx.Circumference = 3.2pi cm => diameter = 3.2 cm => radius = 1.6 cm.Therefore, area = pi*r2 = 1.62*pi = 2.56*pi cm2 = 8.04 cm2 approx.Circumference = 3.2pi cm => diameter = 3.2 cm => radius = 1.6 cm.Therefore, area = pi*r2 = 1.62*pi = 2.56*pi cm2 = 8.04 cm2 approx.
256 pi cm2
Area = pi*r2Area = pi(3.2 centimeters)= 10 cm2======
Measure the diameter = d cm. Then radius = d/2 cm and cross sectional area = pi*r2 cm2.Measure the diameter = d cm. Then radius = d/2 cm and cross sectional area = pi*r2 cm2.Measure the diameter = d cm. Then radius = d/2 cm and cross sectional area = pi*r2 cm2.Measure the diameter = d cm. Then radius = d/2 cm and cross sectional area = pi*r2 cm2.
(3cm)2 x pi = 28.274 cm2