There are two concentric circles with Centre O and of diameter of 10cm and 6cm Respectively AB is a chord of outer circle and touches the inner circle at T. The Length of chord AB is -------------------------.
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Give reason for each of the following.
We wear dark coloured clothes in winter.
b. The handles of cooking utensils are made of bakelite.
c. Wearing more layers of clothing during winter keeps us warmer than wearing one piece of clothing.
d. Ventilators and exhaust fans are placed near the ceiling of a room
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