The area and a diagonal of a rhombus are 60 cm ... - WAEC Mathematics 1993 Question
The area and a diagonal of a rhombus are 60 cm\(^2\) and 12 cm respectively. Calculate the length of the other diagonal.
A
5cm
B
6cm
C
10cm
D
12cm
correct option: c
Area of rhombus = \(\frac{pq}{2}\)
where p and q are the two diagonals of the rhombus.
\(\therefore 60 = \frac{12 \times q}{2}\)
6q = 60 \(\implies\) q = 10 cm
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