Question

Exercitiul urmātor :7

Answer 1

7.) a.) A= L•l

96= 12•l

l= 96:12

l= 8 m

P= 2(12+8)= 2•20= 40 m

b.) A= L•l

96= 16•l

l= 96:16

l= 6 m

P= 2(16+6)= 2•22= 44 m

c.) A= L•l

96= 24•l

l= 96:24

l= 4 m

P= 2(24+4)= 2•28= 56 m