Question

Area of a circle is 49 times the area of another circle with radius 3cm. find the radius of the bigger circle

Answer 1

✴HEY DEAR!!


SOLUTION:


Area of small circle:
$\pi {r}^{2}$
=22/7×3×3=198/7 cm sq.

now,

Area of bigger circle :

198/7×49=1386cm sq.


then,

Area=1386

$\pi {r}^{2} = 1386$
=>22/7×r×r=1386
=>r×r=441
=>r=√441
=>r=21cm



hope it helps u✌

Answer 2

hyee take ur ans.....