a photograph is framed. dimensions of the photo with the frame is 8cm by 6cm and dimension without the frame is 6cm by 4.5 cm. find the area of the frame also find the cost of polishing the frame at a rate of rupees 5 per square centimeters
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dimension of the area of the frame or the area between the photo with the frame and the photo without the frame:
length= length of photo with frame- length of photo without frame= 8-6= 2 cm
width: width of photo with frame- photo without frame= 6-4.5=1.5 cm
area of the frame= length × breadth
= 2×1.5= 3 cm²
cost of polishing the frame = rate* area of frame
= 3×5 = rs 15 per sq cm.
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Answer:
area of frame =21sq cm required cost 105
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