Question

a rectangular cardboard is 18 cm into 10 cm from the four corners of a rectangle quarter circles of radius 4 centimetre what is the perimeter of the remaining portion​

Answer 1

Answer:

Step-by-step explanation:

area of remaining paper =area of paper-areof four quardrent

area of remaining paper=l×b-4×1/4πr×r

area of remaining paper=l×b-πr×r

area of remaining paper=30×20-22/7×7×7

area of remaining paper=600-154=546cm^2

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