In a rhombus, the length of the two diagonals are 40m and 30m respectively. Its perimeter will be
Question and options
In a rhombus, the length of the two diagonals are 40m and 30m respectively. Its perimeter will be
- 100 m
- 70 m
- 80 m
- 90 m
Answer and explanation
Correct answer: A - 100 m
The half-diagonals are 20 and 15, so the side is sqrt(400 + 225) = 25. Perimeter = 4 x 25 = 100 m.
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