Question

the circumference of a circle is 440 find its diameter and area

Answer 1

circumference of a circle is 440 We have formula circumference of circle with radius r = 2*pi*r = 440= 2*pi*r =220/ pi= r ( put pi= 22/7) = r= 70 unit Hence diameter d= 2*r= 140 unit Now area = pi * r^2 = pi* (70)^2= 22/7*70*70= 15400 unit^2

Answer 2

Answer:

Step-by-step explanation:

circumference of a circle is 440 We have formula circumference of circle with radius r = 2*pi*r = 440= 2*pi*r =220/ pi= r ( put pi= 22/7) = r= 70 unit Hence diameter d= 2*r= 140 unit Now area = pi * r^2 = pi* (70)^2= 22/7*70*70= 15400 unit^2