The areas of two Concentric circles froming a ring are 154sq Cm and 616sq cm . find the breath of the ring
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ΠR²=616 cm²
Therefore, 22/7*R²=616
R²=616*7/22
R²=28*7
R²=196
R=14 cm
Πr²=154 cm²
22/7*r²=154
r²=154*7/22
r²=7*7
r=7 cm
Breadth of the ring =R-r=14-7
Breadth of the ring =7 cm.
Therefore, 22/7*R²=616
R²=616*7/22
R²=28*7
R²=196
R=14 cm
Πr²=154 cm²
22/7*r²=154
r²=154*7/22
r²=7*7
r=7 cm
Breadth of the ring =R-r=14-7
Breadth of the ring =7 cm.
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