Question

if radius is 4 cm find the diameter and circumference​

Answer 1

Answer:

r= 4

d= 2r

=2×4

=8

circumference= 2πr= 2π4

= 8π= 8× 3.14= 25.12 cm

Answer 2

RADIUS=4 CM

DIAMETER=4×2=8 CM

CICUMFRENCE=2лR

                          =2×$\frac{22}{7}$×4

                          =$\frac{44}{7}$×4

                          =6.28×4

                           =25.12