The diagonals of a rhombus WXYZ intersect at M ... - WAEC Mathematics 2018 Question
The diagonals of a rhombus WXYZ intersect at M. If |MW| = 5cm and |MX| = 12cm, calculate its perimeter
A
42cm
B
48cm
C
52cm
D
60cm
correct option: c
Let the length of a side of the rhombus be n
Then, n\(^2\) = 5\(^2\) + 12\(^2\)
= 25 + 144 = 169
n = \(\sqrt{169}\)
= 13cm
Hence, perimeter of rhombus = 4n = 4 x 13
= 52cm
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