Question

22. A painting of dimensions 130 cm by 60 cm is to be
framed with a 15 cm wide frame all around its edges . If the framed painting is to be
backed by hard board, find how much hard board will
be needed in square metres.​

Answer 1

Answer:10875 square cm of hardboard will be needed.

Step-by-step explanation:

length = 130 cm

breadth = 60 cm

length with the frame = 130+ 15 cm=145 cm

breadth with frame =60+15 cm +75 cm

therefore are of the full painting+ frame = length *breadth

                                                                    =145*75= 10875 square cm