Question

Help na terazzzz daje najjjjjj

Answer 1

Odpowiedź:

a)

5 + 9 + 5 = 19cm

2 + 4 + 4 = 10cm

P= 10 × 19 = 190cm² = 190000mm²= 1,9dm²

b)

12+4+21= 37cm

12+12+4=28cm

P= 37 x 28 = 1036cm² = 1036000mm² = 10,36dm²

c)

5 + 3 +10= 18cm

4+3+4= 11cm

P= 11 x 18 = 198cm² = 198000mm² = 1,98dm²