STEP 1: find diagonal d2
To find diagonal d2 use formula:
A=2d1⋅d2After substituting A=25cm and d1=10cm we have:
25cm=210cm⋅d225cm⋅2=10cm⋅d250cm=10cm⋅d2d2=10cm50cmd2=5 STEP 2: find side a
To find side a use formula:
d12+d22=4⋅a2After substituting d1=10cm and d2=5cm0 we have:
(10cm)2+5=4⋅a2 100cm2+25=4⋅a2 4⋅a2=125cm2 a2=4125cm2 a2=4125cm2 a=4125cm2a=255cm
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