Answer question number 6.
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r1+r2=14
r1=14-r2---------1
let r1 = x and r2 = y
area of bigger circle - area of smaller circle = area of shaded region
=> πx² - πy² = 264
=> x² - y² = 85 -------2
substituting 1 in 2
196 + y² - 28y - y² = 84
=>112 = 28y
=> y = 4
x = 14 - 4
= 10
so the difference between the two radii are
x - y
=> 10 - 4
=> 6
here is ur answer
r1=14-r2---------1
let r1 = x and r2 = y
area of bigger circle - area of smaller circle = area of shaded region
=> πx² - πy² = 264
=> x² - y² = 85 -------2
substituting 1 in 2
196 + y² - 28y - y² = 84
=>112 = 28y
=> y = 4
x = 14 - 4
= 10
so the difference between the two radii are
x - y
=> 10 - 4
=> 6
here is ur answer
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