Question

Find the length of the diagonal of a rectangle whose sides are 12 cm and 5 cm

Answer 1

Answer:

Step-by-step explanation:

Given AB=12cm

BC=5cm

Find AC

We know that by Pythagoras theorem

AC2=AB2+BC2

=122+52

=144+25

=169

AC=169−−−√

=13

Hence the length of the diagonal is 13cm

Answer : 13 cm

Answer 2

Answer:

Here is the solution:

l=12 cm

b=5 cm

d=√l²+b²=√12²+5²=√144+25=√169=13 cm