Question

Aflati perimetrul unui Dreptunghi ABCD care are AB=10 cm si BC=80% din AB

Answer 1

BC=
$\frac{80}{100} . \: 10 = \frac{80.10}{100} = \frac{800}{100} = 8cm$
P= 2 X L + 2 X l
P= 2 X 10 + 2 X 8
P= 20+16
P= 36 cm