brawlknight brawlknight

24-04-2020
Mathematics

contestada

work out the perimeter of this quater circle with a radius of 7cm, pi = 3.142

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Аноним Аноним

24-04-2020

perimeter of quarter circle formula =
1/4 x pi x radius + 2r

so 1/4 x 3.142 x 7
= 5.4985

5.4985 + 7 + 7
= 19.4985
≈ 19.50 ( 2 decimal place )

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