Question

The length and breadth of a rectangle are 12 cm and 5 cm find the length of its diagonal

Answer 1

Answer:

13cm

Step-by-step explanation:

we know that all the angles in a rectangle are 90⁰

therefore using pythagoras theorem,

12$x^{2}$ + 5$x^{2}$ = (diagonal)$x^{2}$

144 + 25 = (diagonal)$x^{2}$

$\sqrt{169}$= diagonal

13 cm = diagonal

Answer 2

Answer:13

Step-by-step explanation:

Let the length be l

Breadth be b

Now by pythagorus theorem

L^2 + B^2 = D^2

12*12+5*5 = 13*13

D^2 = 169

D = 13