Question

which of he following number is a perfect number a) 6 b) 8 c) 12 d) 9

Answer 1

perfect numbers is

$9$

Answer 2

Answer:

OPTION (D) = 9

BECAUSE , 9 IS THE SQUARE OF 3 ..

$= \sqrt{9} = \sqrt{3 \times 3} = 3$

BUT REST ARE NOT THE PERFECT SQUARE OF ANY NUMBER.

HOPE IT HELPS YOU