Perimeters 81399

Two squares are given. The first has a side length of 5 cm, the second 10 cm. Write the ratio of:
for a- of their sides
for b- their perimeters
for c- their areas

Correct answer:

a =  1:2
b =  1:2
c =  1:4

Step-by-step explanation:

x=5 cm y=10 cm  a=x:y=5:10=1:2=0.5
o1=4 x=4 5=20 cm o2=4 y=4 10=40 cm  b=o1:o2=20:40=1:2=0.5
S1=x2=52=25 cm2 S2=y2=102=100 cm2  c=S1:S2=25:100=1:4=0.25

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