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OpenStudy (anonymous):
ABCD and DECF are both squares. If AC = 28 millimeters, what is the perimeter of DECF?
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OpenStudy (anonymous):
do you have a picture?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
OpenStudy (anonymous):
half of 28 is 14 so \(EC=14\)
OpenStudy (anonymous):
one side of that square is 14 so the perimeter is \(4\times 14\)
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OpenStudy (anonymous):
that means its 56?
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