Question

a sheet of paper measures 30cm by 20cm.a strip 5cm wide is cut from it all around.find the area of the remaining sheet and the strip cut out.​

Answer 1

Answer:

30cm-5=25cm

20cm-5=15cm

a=l*b

a=25cm*15cm

450cmsquare

Step-by-step explanation:

Answer 2

Answer:

$\huge \underline \bold {Given}:$

• Length=30cm
• Breadth=20cm
• Wide of cutter strip = 5cm

$\huge \underline \bold {To \: find} :$

• The area of the remaining sheet and the strip cut out.

$\huge \underline \bold {Solution} :$

★Area Of Sheet★

➞ Area of the Sheet = Length × Breadth

➞ Area of the Sheet = 30 × 20

➞ Area of the Sheet = 600cm²

★Area Of Remaining Sheet★

➞ Length of Remained part = 30 - 5 + 5

➞ Length of Remained part = 30 - 10

➞ Length of Remained part = 20cm

➞ Breadth of Remained part = 20 - 5 + 5

➞ Breadth of Remained part = 20 - 10

➞ Breadth of Remained part = 10cm

➞ Area of Remained part = L × B

➞ Area of Remained part = 20 × 10

➞ Area of Remained part = 200cm²

★Area Of Cutted Strip★

➞ Area = sheet's area - Remained area

➞ Area = 600 - 200

➞ Area of the Strip = 400cm²

Therefore,area of the remaining part = 200cm² and Area the strip =400cm²

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