POWER POINT PRESENTATION

PREPARED BY: PRAGYA SINGH

SQUARE & SQUARE ROOTS

SquareWhen a number is multiplied by itself then the number is

the square number.EXAMPLE: 2x2=4=2²

Perfect SquareA square number if it is the

square of some natural number is called Perfect

square.Example:

225 is a perfect of 15.

Square root

If a number is divided by its own square, it gives value of

root.EXAMPLE: √4 = 2 , √9 = 3 , √144 = 12

Pythagorean TripletThree natural number B, P

and H are such that, B2 + P2 = H2 . Such triplets (B,

P and H) are called Pythagorean Triplet.

(m is a natural number greater than 1)B = 2m

P = m2 – 1 H = m2 +1 B2 + P2 = H2

(2m)2 + (m2 – 1)2 = (m2 +1)2

NOTE:The number of zeros in the

end of a perfect square number is never odd. It is

always even.Example: 1000 is not a perfect square.