Question

Ba eog ex 1 2 3 4 multumesc

Answer 1

1)

1 cm = 2 patratele

P = 2L + 2l = 2*4 + 2*3 = 8 + 6 = 14 cm

2)

P =4L = 4*8 = 32 cm

3)

a) P = 2L + 2l = 2*3 + 2*2 = 6 + 4 = 10 cm

b) P = 4L = 4*2 = 8 cm

c) P = b + 2l = 2 + 2*3 = 2 + 6 = 8 cm

d) P = 3L = 3*4 = 12 cm

4)

P = 128 = 4L => L = 128/4 = 32 cm