if the difference between the circumference and radius of a circle is 37 CM then the area of the circle is
Answers
Answered by
28
Let the radius of circle be r
According to question,
2pi r - r = 37
=> r ( 44/7 - 1) = 37
=> r ( 44 - 7) / 7 = 37
=> r × 37 /7 = 37
=> r = 7
Area of circle = pi r^2
= 22 × 7 × 7 / 7
= 22 × 7
= 154 cm^2
According to question,
2pi r - r = 37
=> r ( 44/7 - 1) = 37
=> r ( 44 - 7) / 7 = 37
=> r × 37 /7 = 37
=> r = 7
Area of circle = pi r^2
= 22 × 7 × 7 / 7
= 22 × 7
= 154 cm^2
Answered by
15
Circumference - radius = 37 cm
2πr - r = 37
r( 2π - 1 ) = 37
r ( 44 - 7 ) = 37×7
r ( 37 ) = 37 × 7
r = 7 cm
Then,
Area = πr²
=> Area = 22/7 ÷ 7 × 7
=> Area = 22×7
=> Area = 154cm²
2πr - r = 37
r( 2π - 1 ) = 37
r ( 44 - 7 ) = 37×7
r ( 37 ) = 37 × 7
r = 7 cm
Then,
Area = πr²
=> Area = 22/7 ÷ 7 × 7
=> Area = 22×7
=> Area = 154cm²
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