Jawaban:
mencari AB (s)
s = 20² + 21²
s = 400 + 441
s = √841
s = 29cm
keliling trapesium
AD + DC + CB + BA
20 + 20 + 29 + 41
= 110cm
koreksi bila salah yaa^^
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Jawaban:
mencari AB (s)
s = 20² + 21²
s = 400 + 441
s = √841
s = 29cm
keliling trapesium
AD + DC + CB + BA
20 + 20 + 29 + 41
= 110cm
koreksi bila salah yaa^^