Question

calculati perimetru unui patrat cu latura de:a)5cm si 7 cm,b)4,7 cm si 6,9 cm,c)5,83 cm 8,42 cm.urgent

Answer 1

Ppătrat=4×l

a)
Ppătrat=4×l⇔
⇔Ppătrat=4×5⇔
⇔Ppătrat=20cm

Ppătrat=4×l⇔
⇔Ppătrat=4×7⇔
⇔Ppătrat=28cm

b)
Ppătrat=4×l⇔
⇔Ppătrat=4×4,7⇔
⇔Ppatrat=18,8cm

Ppatrat=4×l⇔
⇔Ppatrat=4×6,9⇔
⇔Ppatrat=27,6cm

c)
Ppatrat=4×l⇔
⇔Ppatrat=4×5,83⇔
⇔Ppatrat=23,32cm

Ppatrat=4×l⇔
⇔Ppatrat=4×8,42⇔
⇔Ppatrat=33,68cm