Предмет: Математика, автор: катя2271

ширина прямоугольника 4 см,а длина в 2 раза больше.вычисли периметр и площадь прямоугольника

Ответы

Автор ответа: умняшка78

1)4*2=8 S=4*8=32(см²) P=8*2+4*2=24(см)

Автор ответа: умняшка78

S=4*8=32(см ²)

Автор ответа: Kisssssska

a=4см
b=?, в 2 р.>
P=?
S=?

b= 4•2
b=8см
P=(a+b)•2
P=(4+8)•2
P=24см
S=a•b
S=4•8
S=32см²

Автор ответа: Kisssssska

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