Question

need answer urgent ​

Answer 1

Answer:

ans=165 cm square

Step-by-step explanation:

interior length=12 cm

width =1.5 cm

exterior length =12+(1.5+1.5) cm  (2 borders are there so adding 1.5 cm twice)

=15 cm

interior breadth= 8 cm

width=1.5 cm

exterior breadth=8 + (1.5 +1.5) cm  (2 borders are there so adding 1.5 cm twice)

=11 cm

total area=exterior length * exterior breadth

=>15 * 11= 165 cm square

*= Multiply

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Answer 2

Answer:

Step-by-step explanation:

Area of the picture = 12 cm * 8 cm

                               = 96 $cm^{2}$

Since, there are one piece of wood on each side of the picture. Thus, the width of the frame will be added twice in length and width of the frame.

Therefore,  length of the frame = (12 + 1.5 + 1.5) cm

                                                     = 15 cm

Width of the frame = (8 + 1.5 + 1.5) cm

                                = 11 cm

Thus, Area of the frame with the picture = 15 cm * 11 cm

                                                                   = 165 $cm^{2}$

Area of the frame = Area of the frame with the picture - Area of the picture

                              = (165 - 96)$cm^{2}$  

                               = 69 $cm^{2}$