S Purkayastha Solutions for Chapter: Squares and Square Roots, Exercise 2: CHECK POINT

Find whether the following number is square of odd number?

$341$

Find whether the following number is square of odd number?

$2628$

Find whether the following number is square of odd number?

$5579$

Find whether the following number is square of odd number?

$66002$

Find whether the following number is square of even number?

$61504$

Is $\left(20,81,83\right)$ a Pythagorean triplet?

Is $\left(10,24,26\right)$ a Pythagorean triplet?

Observe the following pattern.

$2^2-1^2= 2+1$

$3^2-2^2= 3+2$

$4^2-3^2= 4+3$

$5^2-4^2= 5+4$

Using the above pattern, find the value of ${100}^2-{99}^2$.