Duration : 2hour 45minutes Maximum Marks : 80 ---------------------------------------------------------------1. 2. 3. 4.
5. 6. 7. 8.
10 15 is equal to . . . . . .
18=8
A) 6 5 B) 5 6 C) 6 25 D) Every rational number is a . . . . . . . number. A) Real B) whole C) Natural D) The graph of the linear equation x = y passes through . . . . . A) (1 , 2) B) (2 , 1) C) (1 , 1) D)
6 6
Positive (-1 , 1)
If the sum and product of three numbers is 0 and 30 respectively, the sum of the cubes of those three numbers is . . . . . . A) 90 B) 60 C) 30 D) 10 Ordinate of all points on x-axis is . . . . A) -1 B) 0 C) 1 D) Any number According to Euclid, boundaries of a surface are . . . . . A) Surfaces B) Curves C) lines D) Points The angles of a triangle are in the ratio 2:4:3. The smallest angle is . . . . . A) 800 B) 600 C) 400 D) 200 In ABC , if AB = AC and A = 400 then . . . . . A)
A= B=400 B)
B=C=700 C)
C= A=400 D)
B=C=800
9.
In which quadrant or on which axis the point (0 , -2) lie ?
10. 11. 12. 13. 14.
How many solutions does a linear equation in two variables has ? Find the zero of the polynomial p(x) = 3x – 5. Define ‘Parallel lines’. Two angles whose sum is 90° are called . . . . . . . . angles. In a triangle the sum of any two sides is . . . . . . . than the third side.
15. Give the geometric representations of y = 3 as an equation (i) in one variable (ii) in two variables 16. Rationalise the denominator and simplify :
1 2 3
OR
Simplify : 3 2
2
17. Express the recurring decimal number 0.437 0.4373737...... in the form of a fraction. 18. Classify the following as linear, quadratic and cubic polynomials : (i) x2 + x (ii) x – x3 (iii) y + y2 + 4 (iv) 1 + x. 19. In the figure if AC = BD, then prove that AB = CD. 20. Find two solutions for the equation : 4x + 3y = 12 21. Classify into rational and irrational numbers : 0.25 , 3 , 0.8888…. , 0.2020020002…..
22. Find the product of any one, using suitable identity : (i)
94×95
(ii) 982
OR
23. Write any two axioms of Euclid. 24. In the figure AB║CD and ∠BQP = 650 Find all the remaining angles in the figure. 25. Draw figures showing (i) ∠ABC = 1000 and (ii) 26. In the figure , ∠ABQ = 1100 and ∠ACR = 1300
Linear pairs of angles
Find all the angles of ABC. 27. Factorise x2 – x – 12 by splitting the middle term. 28. In ABC , AB = AC , BD AC and CF AB . Prove that ABD ≅ ACF. 29. Locate
3 on the number line.
30. In the figure, PR > PQ and PS bisects ∠QPR. Prove that ∠PSR > ∠PSQ. 31. Find six different irrational numbers between
1 2 and . 7 7
36=18
OR Find six different rational numbers between 1 and 2. 32. Simplify : (i)
2 32 5
(ii)
310 37
(iii) 24 25
33. Expand using suitable identity : (2x + 3y + 4z)2 OR Evaluate using suitable identity : (104)3 34. If x + y + z = 0, show that x3 + y3 + z3 = 3xyz. 35. Prove that ‘If a transversal intersects two parallel lines, then each pair of alternate interior angles is equal’ OR Prove that ‘If two lines intersect each other, then the vertically opposite angles are equal’ 36. When two line segments AB and CD bisect each other at O, Show that (i) Δ AOD ≅ Δ BOC and (ii) AD || BC. OR Prove that ‘Angles opposite to equal sides of an isosceles triangle are equal’. 37. Visualise 4.2675 on the number line, using successive magnification.
44=16
38. By using remainder theorem find the remainder when p(x) = (x3 – 5x2 – 9x + 10) is divided by g(x) = (x – 1) and verify the answer by actual division. OR Factorise the following using appropriate identities : (i) 9x2 + 6xy + y2 39. Draw the graph of the linear equation : 2 x + y = 5 40. Prove that ‘The sum of the angles of a triangle is 180º.’
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