Question

From a rectangular cardboard sheet 145 cm long and 32 CM broad 42 circular plates each of diameter 8 cm have been cut out find the area of remaining portion of the sheet

Pls solve​

Answer 1

Answer:

Length of cardboard l =145 cm

Breadth of cardboard b =32 cm

Area of cardboard A1=l×b =145×32=4645cm^2

diameter of plates=8 cm

radius =4 cm

Area of plates=22/7×4×4=352/7cm^2

Area of 42 plates A2 =42×352/7=6×352=2112 cm^2

Area of remaining portion=A1-A2=4645-2112=2533cm^2

Step-by-step explanation:

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