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Nikhil Manohar

· started a discussion

· 1 Months ago

??????? (Question: 351248.0 )

how sqroot of 109 equals 10, when noneof these option is there?

Question:

In a cyclic quadrilateral, the length of the sides are 6 cm, 7 cm, 9 cm and 8 cm respectively. If one of the diagonal is 11 cm, then find the length of other diagonal

Options:
A)

5 centimetre

B)

10 centimetre

C)

15 centimetre

D)

None of these

Solution:

Ans: (b)


Avnish Kaushal

· commented

· 1 Months ago

Yet to be approved!

Bun

· commented

· 1 Months ago

10 is the correct answer. If u take ABCD as quadrilateral with AC & BD as diagonals, then AC*BD=AB*CD+BC*DA i.e. 11*x=6*9 + 7*8. On solving you will get x=10
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