Question

Află perimetrul fiecărei figuri, folosind dimensiunile date, a) triunghi: a=7 cm; b = 4 cm; c=5 cm; b) pătrat sau romb: n=6 m; c) dreptunghi sau paralelogram: L = 10 km; /=7 km. dau coroanaa​

Answer 1

Răspuns:

a) 7+4+5=16 cm

b) 6×4=24 cm

c) (10+7)×2= 34 km

Answer 2

a) Perimetru ∆= a+b+c

= 7+4+5=16cm

b) P patrat/romb= l×4=6×4=24cm

c) P dreptunghi= 2×l+2×L

= 2×7+2×10= 14+20=34km=34000m=3400000cm(in caz ca vrei in cm)