Question

area of a circular region is 154 cm square what is its radius​

Answer 1

Answer:

7 cm

Step-by-step explanation:

Area of circle = $\pi r^2$

Given area = 154 $cm^2$

=> 154 = 22/7 * $r^2$

=> 154 * 7/22 = $r^2$

=> $r^2$ = 49

=> r = $\sqrt{49}$

=> r = 7 cm

Answer 2

radius is 7

πr²=154

22/7×r²=154

r²=49

r=7