bonjour
( 1/4 )² = 1/16
( 3/5)² = 9/25
( 11/6 ) ² = 121/36
( √7)² = 7
( √0.21 )² = 0.21
√ 1600 = 40
√ 4 900 = 70
√ 250 000 = 500
√ 0.81 = 0.9
√ 1.21 = 1.1
