A sheet of paper measuring 30cm by 20cm . A strip of Wide 4cm cut from it all around. Find the área of the remaining sheet and also the área of the cut strip
So wouldn't the length be reduced by 8 cm, and the width reduced by 8 cm ?
mmmmhhhh? What is the new area vs the old area ?
show me your work.
30/20= 1.5*4=6 or ( 30~4=26)( 20-4=16) 26/16=2
To find the area of the remaining sheet after cutting the strip, we need to subtract the area of the strip from the total area of the sheet.
1. Calculate the area of the sheet:
Area of the sheet = Length × Width
Area of the sheet = 30cm × 20cm
Area of the sheet = 600 square cm
2. Calculate the area of the cut strip:
Since the strip is cut from all around the sheet, it will form a rectangle with sides equal to the width of the strip.
Area of the cut strip = 2 × (Length of the sheet + Width of the sheet) × Width of the strip
Area of the cut strip = 2 × (30cm + 20cm) × 4cm
Area of the cut strip = 2 × 50cm × 4cm
Area of the cut strip = 400 square cm
3. Calculate the area of the remaining sheet:
Area of the remaining sheet = Area of the sheet - Area of the cut strip
Area of the remaining sheet = 600 square cm - 400 square cm
Area of the remaining sheet = 200 square cm
Therefore, the area of the remaining sheet is 200 square cm, and the area of the cut strip is 400 square cm.