Question

of a crea of rhombus is 45cm square
and one of the diagonal is 15 cm
find the length of other diagonal
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Answer 1

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$\frac{1}{2} \times d1 \times d2 = 45 \\ \\ \implies \frac{1}{2} \times 15 \times d2 = 45 \\ \\ \implies d2 = \frac{ \cancel{45} \times 2}{ \cancel{15} } \: \: \: \: \: \: \: \: \: \: \\ \\ \implies d2 = 3 \times 2 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \implies d2 = 6 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

so, other diagonal of the rhombus is 6 cm

Answer 2

Step-by-step explanation:

1/2Xd1Xd2=45

1/2X15Xd2

d2=45X2/15

d=3X2=6

d2=6

so, other diagonal of the rhombus is 6cm