Предмет: Математика, автор: kurenay

найдите периметр пря моугольника если его длина равна 20 м, а ширина - в 2 раза меньше помогите пж пж пж

Ответы

Автор ответа: 1alBon1

Ответ:

Пошаговое объяснение:

Ширина в 2 раза меньше длины, следовательно 20/2 = 10 м

Периметр = 20+20+10+10 = 60м

Автор ответа: abdugafforovadilnoza

Ответ:

60 м

Пошаговое объяснение:

P=(a+b)*2

a=20

b=a/2=20/2=10

P=(20+10)*2=30*2=60

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