Question

что не видно скажу. Срочно!​

Answer 1

Ответ:

Формула периметра: P = ( a + b ) * 2

1) ( a + b ) * 2 = 98

     a + b = 98 : 2 = 49

     a = 20, 24, 26, 27, 28, 30

     b = 29, 25, 23, 22, 21, 19

2) ( a + b ) * 2 = 120

     a + b = 120 : 2 = 60

     a = 30, 35, 40, 50

     b = 30, 25, 20, 10

3) ( a + b ) * 2 = 140

     a + b = 140 : 2 = 70

     a = 50, 40, 35, 55, 45

     b = 20, 30, 35, 15, 25