16 cm വശമുള്ള ഒരു സമചതുരത്തിനെ വളച്ച് 10cm വീതിയുള്ള ഒരു ചതുരം ആക്കി മാറ്റിയാൽ അതിന്റെ വിസ്തീർണം :
A220 cm²
B200 cm²
C160 cm²
D180 cm²
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