CBSE Class 10 Maths Revision Worksheet (All Chapters)
Fill in the blanks with suitable words.
1. HCF of any two primes numbers is always __________.
2. LCM of Smallest prime number and the smallest composite number is _______.
3. A _________ is a polynomial of degree 0.
4. We get the original polynomial if we multiply its ________ together.
5. If we draw x = a and y = b graphically then we get lines intersecting at _________.
6. If a pair of linear equations is consistent, then the lines will be __________.
7. If the equation is x² + x - 5 = 0, then product of its roots is _________.
8. If Discriminant i.e. D is positive, then the roots are _______ and _______.
9. The sum of AP 1 + 2 + 3 + ... + 10 is _________.
10. The nth term of the A.P. a, 3a, 5a, ... is ________.
11. If the co-ordinates of the points A, B, C and D are such that AB = BC = CD = DA and AC = BD, then quadrilateral ABCD is a _________.
12. The centroid of a triangle divides each median in the ratio ________.
13. ____________ theorem states that if'a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio.
14. ____________ theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides
15. Only _________ tangents can be drawn to a circle from an external point.
16. To divide a line segment in the ratio 4 : 3, it is divided into __________ parts.
17. Sum of ________ of sine and cosine of an angle is one.
18. cot θ is not defined for ∠ =
19. As the observer moves towards the object the angle of elevation __________.
20. If the height and length of the shadow of a man are the same, then the angle of elevation of the sun is ______.
21. __________ is the region between the arc and the two radii.
22. In a clock, the minute hand rotates through an angle of ________ in one minute.
23. From a point P, lying on the circle, ____________ tangent can be drawn to it
24. Tangent to a circle at a point is __________ to the radius through the point of contact.
25. Three cubes each of side 15 cm are joined end to end. The total surface area of the cuboid is ________
26. ________ is measured in cubic units.
27. ________ is the mid-value of class interval.
28. Mode of observations 4, 3, 1, 2, 3, 4, 4 is __________ .
29. The probability of an event that cannot happen is ________. Such an event is called ________
30. A single letter is selected at random from the word 'Probability'. What is the probability it is a vowel _________.
Answers:
1: 1
2: 4
3: constant
4: factors
5: (a,b)
6: intersecting or coincident
7: -5
8: real, unequal
9: 55
10: a(2n -1)
11. square
12. 2:1 or 1:2
13. Basic Proportionality or Thales
14. Pythagoras
15. two
16. 7
17. square
18. 0°
19. increases.
20. 45°
21. sector
22. 6°
23. one and only one
24. perpendicular
25. 3150 cm²
26. Volume
27. Class mark
28. 4
29. 0, impossible event
30. 4/11
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