Question

Find the circumference of a circle if its diameter is 18 cm. (Take π=3.14)

Answer 1

Answer:

Step-by-step explanation:

C≈56.55cm

C=2πr

d=2r

Solving for C

C=πd=π·18≈56.54867cm

Diameter= 18,

Radius(r)= 18/2

Therefore, We get the Radius= 9

Circumference (Perimeter) = ?

Using the formula,

Perimeter=2*π*r

Here, π=3.14

=2*3.14*9

=56.52

mark as brainliest please

Answer 2

Answer: The circumference of a circle if its diameter is 18 cm is 56.52 cm

Step-by-step explanation:

Diameter= 18,

Radius(r)= 18/2

Therefore, We get the Radius= 9

Circumference (Perimeter) = ?

Using the formula,

Perimeter=2*π*r

Here, π=3.14

=2*3.14*9

=56.52

Hence, the circumference of a circle if its diameter is 18 cm is 56.52 cm