Question

va rog repede
dau 10 puncte

Answer 1

1.a)BC=2MN=2×3=6cm

b)MN=BC/2=7/2=3,5cm

2.pMNP=13/2=6,5cm

3.perim.∆ABC=2×∆AMN=2×13=26cm

4.l.m.∆echilateral latura /2

perim =5×2×3=30cm

5.perom.∆ isoscel=25cm

a.BC=10

AB=AC=(25-10)/2=7,5cm

b.AB=7

BC=25-7-7=11cm

c.AB+BC=14

AC=25-14=11cm