Find the perimeter of the semi-circle of radius 35 cm including its diameter.
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Answer:
250 cm
Step-by-step explanation:
Perimeter of semi circle = π r + 2 r
= r ( π + 2)
= 35 cm ( 22/7 + 2) making denominator equal so multilpying 2 with 7
= 35 cm ( 22/ 7 + 14 / 7)
= 35 cm ( 22 + 14 ) / 7
= 35 cm x 36 / 7
= 5 cm x 36
= 180 cm
radius = 35 cm then diameter = 2 x radius = 2 x 35cm = 70cm
Perimeter of semicircle including diameter = Perimeter + diameter
= 180 cm + 70 cm
= 250 cm
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