Step-by-step explanation:
area of rect = l*b
36*25 = 900 cm^2
r of circle = d/2
3.5/2
1.75
area of 1 button = πr^2
22/7*1.75*1.75
= 9.62 cm^2
area of 56 buttons= 56*9.62
538.72 cm^2
remaining area = area of rectangle - area of 56 circles
900-538.72
=361.28 cm^2 ans
pls mark my answer as brainiest
Answer:
361.28 cm^2/sec is the answer
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Answers & Comments
Step-by-step explanation:
area of rect = l*b
36*25 = 900 cm^2
r of circle = d/2
3.5/2
1.75
area of 1 button = πr^2
22/7*1.75*1.75
= 9.62 cm^2
area of 56 buttons= 56*9.62
538.72 cm^2
remaining area = area of rectangle - area of 56 circles
900-538.72
=361.28 cm^2 ans
pls mark my answer as brainiest
Answer:
361.28 cm^2/sec is the answer