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WAEC Mathematics 2021 Paper

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Question : 24

Total: 49

The diagonal of a rhombus are 12cm and 5cm. calculate its perimeter

26cm
24cm
17cm
34cm

Solution:

Perimeter of a Rhombus = 4L or 2√( d1 $^2$ + d2 $^2$ )

P = 2√(12 $^2$ + 5 $^2$ )

P = 2√(144 + 25)

P = 2√169 = 2 * 13

P = 26cm

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