alleryParallelogram ABCD's diagonals meet at O. AO=2x+1 cm and OC=3x−2 cm. Find the whole diagonal AC.
A7 cm
B14 cm
C3 cm
D6 cm
Answer & Solution
Correct answer: B. 14 cm
Bisection gives 2x+1=3x−2, so x=3. Then AO=OC=7 cm and AC=14 cm.
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