Question

1p
The area of the circle is 3.5 times that of circumference of the circle. What
is the circumference (in cm) of the circle? *​

Answer 1

Answer:

3.5(2πr) = πr^2

7πr = πr^2

πr(7) = πr(r)

7 = r

radius = 7 cm

Circumference = 2πr

C = 2 * 22/7 * 7

C = 44 cm

The circumference of circle is 44 cm

Answer 2

★ Given :-

• Area of circle is 3.5 time of its circumference

★ We need to find :-

• Circumference of the circle = ?

★ Solution :-

By the given information ,

3 × ( Circumference ) = Area of circle

As we know that ,

• Circumference = 2πr
• Area of circle = πr²

Substituting we have ,

→ 3.5 × ( 2πr ) = πr²

→ 7πr = πr²

→ 7 = πr²/πr

→ 7 = r

→ Radius = 7cm

Now , finding circumference

Circumference = 2πr

→ Circumference = 2(22/7)(7)

→ Circumference = 2(22)

→ Circumference = 44cm

Hence , circumference of the circle is 44cm