please solve 8 one and clear my doubt
Answers
B=32
area=145×32= 4640
area of circular plates=42×pie×4²
=2112
remained area= 4640-2112
=2528 cm²
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Answer:
2529.92 sq cm
Step-by-step explanation:
Area of the rectangular cardboard = l x b
= 145×32
= 4,640 sq.cm
Area of the the Circular Plates = πr²
= 3.14×4²
= 2,110.08 sq.cm
Area of the remaining portion of the
cardboard sheet = Area of the Cardboard - Area of the
Circular plates
= 4,640 - 2,110.08
= 2,529.92 sq.cm
Therefore, the Area of the remaining portion of the Cardboard sheet is
2,529.92