SSLC (English Medium) कक्षा ८ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Mathematics

A greeting card has an area 90 cm². Between what two whole numbers is the length of its side?

Factorise the following expressions

4x² – 8x + 3

Factorise: (7y² – 19y – 6)

A contractor uses the expression 4x² + 11x + 6 to determine the amount of wire to order when wiring a house. If the expression comes from multiplying the number of rooms times the number of outlets and he knows the number of rooms to be (x + 2), find the number of outlets in terms of ’x’. [Hint : factorise 4x² + 11x + 6]

A mason uses the expression x² + 6x + 8 to represent the area of the floor of a room. If the decides that the length of the room will be represented by (x + 4), what will the width of the room be in terms of x?

Find the missing term: y² + (...)x + 56 = (y + 7)(y + ...)

Construct the following parallelograms with the given measurements and find their area.

EARN, ER = 10 cm, AN = 7 cm and ∠EOA = 110° where `bar("ER")` and `bar("AN")` intersect at O

Find the least number by which 1800 should be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square thus obtained

The square of 43 ends with the digit ______

`sqrt(128) - sqrt(98) + sqrt(18)` = ______

The number of digits in the square root of 123454321 is ______ 

Evaluate: `sqrt(286225)` and use it to compute `sqrt(2862.25) + sqrt(28.6225)`

Factorise the following expressions using (a + b)³ = a³ + 3a²b + 3ab² + b³ identity 

64x³ + 144x² + 108x + 27

Factorise the following expressions using (a + b)³ = a³ + 3a²b + 3ab² + b³ identity 

27p³ + 54p²q + 36pq² + 8q³

One factor of x³ + y³ is

Construct the following parallelograms with the given measurements and find their area.

GAIN, GA = 7.5 cm, GI = 9 cm and ∠GAI = 100°

Find the square root of the following decimal numbers and fractions

2.89

Find the square root of the following decimal numbers and fractions

67.24

Find the square root of the following decimal numbers and fractions

2.0164

Find the square root of the following decimal numbers and fractions

`144/225`