Question

circumfrence of a circle with radius of 42 cm

Answer 1

$C = 2\pi r \\ C = 2 \times \frac{22}{7} \times 42 \\ C = 2 \times 22 \times 6 \\ C = 264 \: cm$

Answer 2

Answer:

formula circumference=2pai r

now ---- 2×22/7×42=264m