Theryangarza Theryangarza

28-03-2017
Mathematics

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In a circle, a 90° sector has area 64π ft2. What is the radius of the circle?

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syrineajroudi syrineajroudi

28-03-2017

the area of a circle is Pi R² and u do the calculation

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1999eva 1999eva

28-03-2017

s-area of a sector
S=πr^2n°/360°
r^2=360°S/πn°
=360°64π/90°π
=64*4
r=√4*4*4*4(64=4*4*4)
r=16ft

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