Question

1. If HCF (a, b) = 12 and a × b = 1800, then find LCM (a, b).

2. If one of the zeroes of the quadratic polynomial

 1 1

2

k  x  kx 

is -3, then what is the value

of k?

3. Calculate the zeroes of the polynomial

P( ) 4 12 9

2

x  x  x  .

4. Find the positive root of

3 6 9

2

x   .

5. Find the tenth term of the sequence

2 , 8 , 18 ,…….

6. Are two triangles with equal corresponding sides always similar?

7. Find the perpendicular distance of a point P (3, - 4) from the y – axis.

8. Find the value of a, for which point P (

,2 3

a

) is the midpoint of the line segment joining

the Points Q (- 5, 4) and R (- 1, 0).

9. In a right angle ∆ABC, right angled at B. If

4 A 3

sin 

then find secA.

10. What happens to value of cosθ when θ increases from 0˚ to 90˚?

11. Find the value of

 

sin 60 cos 45 2 2

 .

12. In the figure, PA and PB are tangents to a circle with centre O. If



AOB = 120˚, then

find



OPA.

13. The radius of a circle is 17.5 cm. find the area of the sector of the circle enclosed by two

radii and an arc 44 cm in length​

Answer 1

hope hope you understood