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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