Class 9 Number Systems MCQ Quiz Set 1
Number Systems Quiz – 1 [WATU 30]
Class 9 Polynomials MCQ Quiz Set 2
Polynomials Quiz – 2 [WATU 25]
Class 9 Polynomials MCQ Quiz Set 1
Polynomials Quiz – 1 [WATU 24]
NCERT Solutions Class 9 Maths Chapter 2 Polynomials
Exercise 2.1 Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer:-(i) 4×2– 3x + 7(ii) y2+√2(iii) 3√t+t√ 2(iv) y+(v) x10+y3+t50Sol:- (i) 4×2–3x+7 is a polynomial in one variable. The equation 4×2–3x+7 can be written as 4×2–3×1+7×0 and since x is the only variable in the given equation […]
Ncert solution Class 9 Maths Chapter 1 Number Systems
Exercise 1.1 Is zero a rational number? Can you write it in the form p/q,where p and q are integers and q ≠0 ?Ans:- Yes zero is a rational number.we can write zero as :-0/1, 0/2Thus we can write 0 in the form of p/q where p and q are integers and q ≠0 . Hence, […]
Class 9 – Statistics – Important Questions
Statistics – Important Questions Mean of 20 observations is 17. If in the observations, observation 40 is replaced by 12, find the new mean What is the mean of first 10 natural numbers? The mean of 100 observations is 50. If one of the observation which was 50 is replaced by 150 then what will […]
Class 9 Surface Areas and Volumes Important Questions
Surface Areas and Volumes Important Questions A conical tent is 10 m high and the radius of its base is 24 m. Find the slant height of the tent. If the cost of 1 m2 canvas is ₹ 70, find the cost of canvas required to make the tent. A man uses a piece of […]
Class 9 Heron’s Formula Important Questions
Heron’s Formula – Important Questions The sides of a triangular plot are in the ratio of 6 : 7 : 8 and its perimeter is 420 m. Find its area. The height of an equilateral triangle is 6 cm. Find its area. Find the area of a right-angled triangle whose base is 12 cm and […]
Class 9 Constructions Important Questions
Constructions – Important Questions Construct an equilateral triangle, given its side and justify the construction. Construct a triangle ABC in which BC = 8cm, ∠B = 75° and AB + AC = 14 cm. Draw a line segment AB of 6 cm in length. Draw a line perpendicular to AB through A and B, respectively. […]
Class 9 – Circles – Important Questions
Circles – Important Questions Prove that if chords of congruent circles subtend equal angles at their centres, then the chords are equal. Draw different pairs of circles. How many points does each pair have in common? What is the maximum number of common points? If two circles intersect at two points, prove that their centres […]