if the area of a circle is 7.5 cm sq.then find its circumference
vrinda16:
πr²
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hey !!!
Area of circle = πr²
22/7× r² = 7.5cm²
r² = 7.5× 7/22
r = √52.5/22
r = √23.86
r = 4.88
Circumference of cirlcle= 2πr
=> 2×22/7 ×4.88
=> 22×3.14 ×4.88
=> 337.45 Cm answer ..
hope it helps !!
#Rajukumar111
Area of circle = πr²
22/7× r² = 7.5cm²
r² = 7.5× 7/22
r = √52.5/22
r = √23.86
r = 4.88
Circumference of cirlcle= 2πr
=> 2×22/7 ×4.88
=> 22×3.14 ×4.88
=> 337.45 Cm answer ..
hope it helps !!
#Rajukumar111
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