Question

How to approach these type of questions and their solutions
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Answer 1

1

Step-by-step explanation:

3.6cm will be the answer of the question

Answer 2

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∵ (as )the chords of the circle are equal so the centre will lie on the bisector of ang(BAC)

➠OA bisects ang(BAC)

➠now the internal bisector of an angle divides the opposite side into the ratio of the sides containing the angle.

➠i.e.,P is the mid point of BC.

➠OP⊥BC

now...from the ∆ABM

➤AB²=BM²+AM²

➤6²=BM²+AM²

➤BM²=6²-AM²

Now from the ∆BMO,

➤BO²=BM²+OM²

➤5²=6²-AM²+(AO-AM)²

➤5²=6²-AM²+(5-AM)²

➤5²=6²-AM²+5²+AM²-10AM

➤10AM=36

➤AM=3.6 cm

∴0M=5-AM=(5-3.6)cm=1.4cm

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