Question

Find the circumferenceof circles with the following diameter. a) 6.9 cm​

Answer 1

Answer:

circumference=2πr

Step-by-step explanation:

r=6.9/2

=3.45

circumference =2×3.14*3.45

=21.66cm

Answer 2

Step-by-step explanation:

circumference of circle = 2 pai r

so r =6.9÷2=3.45

so 2×22/7×3.45= 21.68 approx...thank you