Question

The perimeter of the rectangle whose length is 60 cm and a diagonal
is 61 cm is
(a) 120 cm (b) 122 cm (c) 71 cm (d) 142 cm ( with full explanation)​

Answer 1

Answer:

d 142 cm

Step-by-step explanation:

diagonal^2=length^2+breadth^2

61^2=60^2+b^2

121=b^2

b=11

perimeter=2(l+b)

=2(11+60)

=2*71

=142 cm