Răspuns :
a) A=64cm²
b)A=13:4x13:4=6.5cm²
c)A=2.05x2.05=4.2025cm²
d)A=7.(3)²=53.(7)cm²
A=l²
b)A=13:4x13:4=6.5cm²
c)A=2.05x2.05=4.2025cm²
d)A=7.(3)²=53.(7)cm²
A=l²
a) A=l² A=8²=64
b)3 intregi 1/4= 13/4 A=(13/4)²=169/16
c)A=(2,05)²=4,2025
d) 7,(3)= 7 intregi 3/9= 7 intregi 1/3=22/3 A=484/9
b)3 intregi 1/4= 13/4 A=(13/4)²=169/16
c)A=(2,05)²=4,2025
d) 7,(3)= 7 intregi 3/9= 7 intregi 1/3=22/3 A=484/9