Question

if the area of a circle is 154 cm square then it is circumference is

Answer 1

Answer:

Step-by-step explanation:

area=154cm square

area=pi r square

154cm=22/7×r ×r

154cm×7/22=r×r

49cm=r square

r=7cm

circumference =2 pi r

2×22/7×7cm

2×22cm

44cm

Answer 2

$area \: of \: the \: circle \: = 154 {cm}^{2} \\ \pi {r}^{2} = 154 \\ {r}^{2} = 154 \times \frac{7}{22} \\ r = \sqrt{49} \\ r = 7cm \\ \\ thus. \\ circumference \: of \: circle \: is \\ = > 2 \times \pi \: r \\ = > 2 \times \frac{22}{7} \times 7 \\ = > 44 \: cm$


$......hope \: you \: got \: it........$