Q 4. What is the length of the wooden strip required to frame a photograph of length and breadth of 32 cm and 21 cm, respectively?
The length and breadth of a photograph are 32 cm and 21 cm, respectively.
So, according to the question:
length of wooden strip required to frame the photograph is 2 [L + B]
= 2 [32 + 21] cm
= 2 53 cm = 106 cm
Hence, the required length of the strip is 106 cm or 1.06 m