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musicismylove2340
20.12.2020 •
Mathematics
The relationship between the radius, r, of a sphere and its surface area, A, is r = ( A /4 π ) 1/2. What is the radius of a sphere that has a surface area of 64π square units?
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Ответ:
8 units
Step-by-step explanation:
Given the relationship between the radius, r, of a sphere and its surface area, A expressed as;
r = 1/2( A /4 π )
We are to find the radius r when Area A is 64π
Substitute A = 64π into the expression and get r as shown;
Recall that: r = 1/2( A /4 π )
r = 1/2( 64 π/4 π )
r = 1/2(16)
r = 16/2
r = 8units
Hence the radius of the sphere will be 8 units
Ответ:
9/5x-4
Step-by-step explanation: