Regular pentagon ABCDE is similar to MNOPQ . If AB=8 centimeters and OP=4 centimeters, what is the scale factor between ABCDE and MNOPQ?

Question

Regular pentagon ABCDE is similar to MNOPQ . If  AB=8 centimeters and  OP=4 centimeters, what is the scale factor between  ABCDE and MNOPQ?

hero · Answer

I'd like to see @amberose10 take a stab at it.

campbell_st · Answer

regular means all sides equal.. so 

just compare the lengths

anonymous · Answer

4:8 ... which is 1:2 simplified

campbell_st · Answer

correct

hero · Answer

Actually, the first measurement was 8. The second measurement was 4

campbell_st · Answer

if you are looking at OP:AB

hero · Answer

The ratio is AB:OP

hero · Answer

@campbell_st don't try to recover from the obvious mistake you made. It's too late.

anonymous · Answer

so the awsners are :
a).5
b)2
c)4
d)not enough info

hero · Answer

@amberose10, the hint has been given. I honestly wish @campbell_st would stop interfering.

anonymous · Answer

so then its 2:1 ratio ... which is 2 . Choice b ?

hero · Answer

Correct.

anonymous · Answer

yay!

hero · Answer

Works a lot smoothly when I give you a hint. Even if it's a big one. Just as long as I don't have to give you the answer, everything is fine.