Jose Paul Solutions for Chapter: Squares and Cubes, Exercise 3: EXERCISE 2.3

Find the value of ${73}^2$. 

Find the value of ${86}^2$.

Find the value of ${27}^2$.

Find the value of ${35}^2$.

Find the value of ${58}^2$.

Find the value of ${74}^2$.

A right-angled triangle has sides $12 \mathrm{m}$ and $5 \mathrm{m}$. If the length of the hypotenuse of this triangle is $k \mathrm{m}$, then find the value of $k$.

Nita walks from her house $160$ metres north and from there $630 \mathrm{m}$ west to visit her friend. While coming back, she walked diagonally from her friend's house to her house. If the total distance she walked is $k \mathrm{m}$, then find the value of $k$.