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ADC)
1/2 circumference = 1/2 × π×d
= 1/2×22/7×4.3
= 6.45cm ----(I)
AEB)
1/2circumference = 1/2×π×d
= 1/2×22/7×2.8
= 4.20cm ----(II)
CFB)
1/2 circumference = 1/2×π×d
= 1/2×22/7×1.4
= 2.10cm ----(III)
Perimeter of Shaded region = (I) + (II) + (III)
= 6.45+4.20+2.10
= 12.75 cm
1/2 circumference = 1/2 × π×d
= 1/2×22/7×4.3
= 6.45cm ----(I)
AEB)
1/2circumference = 1/2×π×d
= 1/2×22/7×2.8
= 4.20cm ----(II)
CFB)
1/2 circumference = 1/2×π×d
= 1/2×22/7×1.4
= 2.10cm ----(III)
Perimeter of Shaded region = (I) + (II) + (III)
= 6.45+4.20+2.10
= 12.75 cm
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