Question

A picture frame is 80 cm by 60 cm Find it's diagonal.​

Answer 1

Answer:

It's diagonal is 100 cm.

Step-by-step explanation:

Given, length of picture frame = 80 cm 

and breadth of picture frame = 60 cm

Now, length of the diagonal of picture frame = √{(length)2 + (breath)2 }

                                                                 = √{(80)2 + (60)2 }

                                                                 = √{6400 + 3600 }

                                                                 = √(10000)

                                                                 = 100 cm

Answer 2

The picture frame is a rectangle.

Since diagonal^2 = length^2 + breadth^2

=> d^2 = 80^2 + 60^2

=> d^2 = 6400 + 3600

=> d^2 = 10000

=> d = sqrt(10000)

=> d = 100cm.