Q. 7. From a point P, the length of the tangent to a circle is 15 cm and distance of P from the centre of the circle is 17 cm. Then what is the radius of the circle?
Sol 
Ans. 8 cm
Q. 8. A chord of a circle of radius 14 cm subtends a right angle at the centre. What is the area of the minor sector?
Sol. 
Ans. 154 cm2
Q. 9. Cards bearing numbers 3 to 20 are placed in a bag and mixed thoroughly. A card is taken out from the bag at random. What is the probability that the number on the card taken out is an even number?
Sol. Cards with even number are 4, 6, 8, 10, 12, 14, 16, 18, 20 i.e., 9
Total number of cards = 18
Ans . 
| Mathematics 2008 Question Papers Class X | |||||||
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