In a rhombus ABCD, AO=6 cm and BO=8 cm. How much is the perimeter of this rhombus?
(A) 28 cm (B) 35 cm
(C) 40 cm (D) 48 cm
(E) None of the above
In a rhombus diagonals bisect each other at
. Therefore,
.
In
, we have
(Pythagoras Theorem)
cm
Sides of rhombus are equal. Therefore, perimeter = 4
side
cm
Hence, the answer is (C).
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