Question

A picture frame is 80cm by 60 cm . find its diagonal ?

Answer 1

Then picture frame is rectangle.

Since diagonal ^2 = l^2 + b^2

=) d^2 = 80^2 + 60^2

=) d^2 = 6400 + 3600

=) d^2 = 10000

=) d^2 = 100^2

=) d = 100cm.

Hope it's helpful to u.

Answer 2

hello friend ,

of the picture frame :-

length = 80cm
breadth = 60 cm

diagonal
= sqrt/{80^2 + 60^2}
= sqrt/{6400 + 3600}
= sqrt/{10000}
= 100 cm