Question

o gradina are lungimea de 15 metri iar latimea cu 100 dm mai mica Cati metri masoara gardul care imprejmuieste gradina?​

Answer 1

100 dm = 10 m  

15 - 10 = 5 m latimea gradinii  

( 15 + 5 ) x 2 = 20 x 2 = 40 m masoara gardul care inconjoara gradina

Answer 2

100 dm = 10 m

L =15 m

l= 15-10 => l = 5 m

P = 2×( l+L ) = 2×( 15+5)=2×20=40 m ( are gardul )