Question

11. When area circle is 154
cm^2, then the circumferenc
of circle will be​

Answer 1

Step-by-step explanation:

22/7(r^2)=154

r^2 = 154(7/22)

r^2 = 49

r = 7

circumference 2(22/7)r

2(22/7)(7)

= 44cm^3

Answer 2

Answer:

44 cm

Step-by-step explanation:

1. 154cm²= πr²

2. r²= 154/π

3. r²= 154×7/22

4. r²=49

5. r=7

6. Circumference=2πr=2×22×7/7=44 cm