Question

find the area of the square,the length whose diagonal is 72 cm​

Answer 1

Length of diagonal = 72 cm

Now,

Diagonal = a√2, where a is the side of the square.

Thus,

a√2 = 72

a = 72/√2 = 72√2/2= 36√2

Side = 36√2 cm

Area = (36√2)² cm² = 1296 x 2 cm² = 2592 cm²

Answer 2

Answer:

Each side = √36^2 + 36^2

= √1296 + 1296

= √2592

= √36 × 36 × 2

= 36 √2 cm

Area = 36√2 × 36√2

= 2592 sq. cm Ans...