what would be the circumference of a circle whose area is 745.36 sq cm
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4
Hey !!
Area of circle = 745.36
πr² = 745.36
22/7 × r² = 745.36
r² = ( 745.36 × 7)/22
r² = 237.16
r = √237.16
r = 15.4 cm.
Therefore,
Circumference of circle = 2πr
= 2 × 22/7 × 15.4
=> ( 2 × 22 × 15.4) / 7
=> 677.6/7
=> 96.8 cm.
Area of circle = 745.36
πr² = 745.36
22/7 × r² = 745.36
r² = ( 745.36 × 7)/22
r² = 237.16
r = √237.16
r = 15.4 cm.
Therefore,
Circumference of circle = 2πr
= 2 × 22/7 × 15.4
=> ( 2 × 22 × 15.4) / 7
=> 677.6/7
=> 96.8 cm.
Answered by
2
Hey !!
area of circle = 745.36
πr² = 745.36
r = 15.4 cm
Circumference of circle = 2πr = 2 × 22/7 × 15.4 = 96.8 cm.
area of circle = 745.36
πr² = 745.36
r = 15.4 cm
Circumference of circle = 2πr = 2 × 22/7 × 15.4 = 96.8 cm.
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