SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions

The length and breadth of a rectangular plot are 5 × 10⁵ and 4 × 10⁴ metres respectively. Its area is ______

Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

ΔABC and ΔDEF are two triangles in which AB = DF, ∠ACB = 70°, ∠ABC = 60°, ∠DEF = 70° and ∠EDF = 60°. Prove that the triangles are congruent

Let m be the midpoint and b be the upper limit of a class in a continuous frequency distribution. The lower limit of the class is

A particular observation which occurs maximum number of times in a given data is called its

In the figure, ∠TMA ≡∠IAM and ∠TAM ≡ ∠IMA. P is the midpoint of MI and N is the midpoint of AI. Prove that ΔPIN ~ ΔATM

Rationalise the denominator `1/sqrt(50)`

Rationalise the denominator `5/(3sqrt(5))`

Rationalise the denominator `sqrt(75)/sqrt(18)`

Rationalise the denominator `(3sqrt(5))/sqrt(6)`

Rationalise the denominator and simplify `(sqrt(48) + sqrt(32))/(sqrt(27) - sqrt(18))`

Rationalise the denominator and simplify `(5sqrt(3) + sqrt(2))/(sqrt(3) + sqrt(2))`

Rationalise the denominator and simplify `(2sqrt(6) - sqrt(5))/(3sqrt(5) - 2sqrt(6))`

Rationalise the denominator and simplify `sqrt(5)/(sqrt(6) + 2) - sqrt(5)/(sqrt(6) - 2)`

Find the value of a and b if `(sqrt(7) - 2)/(sqrt(7) + 2) = asqrt(7) + b`.

If x = `sqrt(5) + 2`, then find the value of `x^2 + 1/x^2`

Given `sqrt(2)` = 1.414, find the value of `(8 - 5sqrt(2))/(3 - 2sqrt(2))` (to 3 places of decimals).

Represent the following numbers in the scientific notation:

569430000000

Represent the following numbers in the scientific notation:

2000.57

Represent the following numbers in the scientific notation:

0.0000006000