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Q.

In the given figure, B<A and C<D. Identify the correct relation.
Triangles Class 9 Extra Questions Maths Chapter 7 with Solutions Answers 5

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a

AC < BD

b

AD > BC

c

AD < BC

d

OD > CO

answer is C.

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Detailed Solution

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Here, ∠B < ∠A
⇒ AO < BO …..(i)  [Side opposite to greater angle is longer.]
and ∠C < ∠D
⇒ OD < CO …..(ii)  [Side opposite to greater angle is longer.]
Adding (i) and (ii), we obtain
⇒ AO + OD < BO + CO
AD < BC

Therefore, option C is the correct answer.

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