Question

Q.1. Define Medians.
Q.2. What is rational number?
Q.3. What is positive rational number?
Q.4. Express 0.25 in standard form.
Q.5. Can 3,4,10 be the sides of a triangle ?
Q.6. Simplify :- ( 4​4​ × 5​-4 ​)
Q.7. Are Medians of a triangle Concurrent? Yes/No
Q.8. Find the reciprocal of ( -9 )​4​.
Q.9. Express 22/7 as decimal by using long division method.
Q.10. How many rational numbers can you find between two Rational number? SECTION :- 'B'

Q.11. What is angle bisector?
Q.12. What is perpendicular bisector?
Q.13. Define incentre.
Q.14. In ∆ABC ; AB + BC is greater than ……..
Q.15. The centroid of the triangle divides each median in the ratio ……….
SECTION :- 'C'

Q.16. Two rectangles are Congruent if they have ………..
Q.17. Range = ?
Q.18. Show that in an isosceles triangle, angles opposite to equal sides are equal. Q.19. The mean of 8 numbers is 27, if one more number is included then the mean becomes 26. Find the included number.
Q.20. Find the mean of the following data :- 11, 39 43, 45, 25, 46, 43, 42, 37

Answer 1

1.The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.

2.a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.