Предмет: Геометрия, автор: artem38838484

2.Площа квадрата дорівнює 81 см². Знайдіть його периметр. a) 36 см; 6) 51 CM, B) 49 cm; г) 24 см.​

Mikail2006: корень(81)*4
Mikail2006: a) 36 см
artem38838484: мне надо полное ришения)

Ответы

Автор ответа: vitya877
1

Ответ:

36см

Объяснение:

S=a²

81=a²

a=9см- сторона квадрата

P=4a

P=4*9=36см

Ответ: P=36см

artem38838484: спасибо огромное
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