circular disc of radius 28 cm is divided into two equal parts. What is the
perimeter of each semicircular shape disc? Also find the perimeter of the circular
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Answer:
88cm ; 176cm
Step-by-step explanation:
Perimeter of semicircle = pi r
= 22/7 × 28
= 22 × 4
= 88cm
Perimeter of each semi circular shape disc is 88cm
Perimeter of whole circle = 2 pi r
= 2 × 22/7 × 28
= 2 × 22 × 4
= 2 × 88
= 176cm
Perimeter of whole circular shape disc is 176cm
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