Question

find the length of diagonal of square whose side is 5 cm​

Answer 1

Answer:

5$\sqrt{2}$ cm

Step-by-step explanation:when we draw diagonal right angle triangle will form,so we have to apply Pythagoras theoram in that triangle.

$hypotenuse^{2}$ =$side^{2}$+$side^{2}$

$h^{2}=a^{2}+a^{2}$

$h^{2}$ = $5^{2} +5^{2}$ =50

$h^{2}$ = 50

h=$\sqrt{25 * 2}$

h= 5$\sqrt{2}$

Diagonal of square is 5√2 cm.