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Answers
340
Step-by-step explanation:
2×(l+b)
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Step-by-step explanation:
The perimeter of the rectangle = 2 (L+B) cm
= 2 (40+60) cm
= 80+120 cm
=200 cm
The perimeter of the square = 4s cm
= 4×15 cm
= 60 cm
Therefore, the perimeter of the shaded region = (perimeter of rectangle) - (perimeter of square) cm
= 200 - 60 cm
= 140 cm
Answer:
Therefore the area of the shaded region is 140 cm.
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