Question

va rog dau coroana. ​

Answer 1

Răspuns:

a.

P=4L=>P=4×96=>P=384 cm

b.

P=2(L+l)

800=2(l+l+2)

800:2-2=2l=>l=398:2=>l=199

L=199+2=>L=201

laturile sunt nr impare nu pare

c.

320=4L=>L=320:4=>L=80 cm

d.

PΔ=3L=>P=3×8=>P=24 cm

Promb=4L=>P=4×24=>P=96 cm

e.

P=4×19=>P=76 cm

P=4×43=>P=172 cm