Question

area of circle 154sq.cm find circumfremce.​

Answer 1

Step-by-step explanation:

πr^2=154

22/7×r^2=154

r^2=154×7/22

r=7

circumference of circle=2πr

=2×22/7×7

=44cm

Answer 2

Answer:

7

Step-by-step explanation:

${\pi r}^{2} = 154 \\ {r}^{2} = 154 \times 7 \div 22 \\ {r }^{2} = 77 \times 7 \div 11 \\ {r}^{2} = 7 \times 7 \\ r \: = \sqrt{49} \: \\ r \: = 7$