The area of a square is 1,521 cm2. Find the length of a side of the square by prime factorisation method.

Question

asked Mar 21, 2021 54.7k views

1 Answer

Frint · Answer 1 · 2021-03-24T13:48:30+0000

9514 1404 393

Answer:

39 cm

Explanation:

1521 = 3·3·13·13 = (3·13)² = 39²

The length of the side of the square is 39 cm.