Question

what is the lenght of the wooden strip required to frame a photograph of lenght and breadth 32 cm and 21 cm respectively ?

Answer 1

We know that the shape of the given photograph is rectangular in shape and hence the length of the wooden strip required to frame it will be equal to the perimeter of the photograph.

Hence, the length of the wooden strip = Perimeter of the photograph

Perimeter of a rectangle = 2 (Length + Breadth)

Length = 32 cm, Breadth = 21 cm

Now, substituting the values of length and breadth in the perimeter formula we get,

⇒ 2 (Length + Breadth)

⇒ 2 (32 + 21)

⇒ 2 × 53

⇒ 106 cm

Thus, the length of the wooden strip required will be 106 cm.