Question

If the perimeter of semicircular protractor is 66 cm find the radius of the protector

Answer 1

HeYa !!!!

your answer

thanks

Answer 2

here is ur answer:


perimeter of semicircle: πr

$66 = \frac{22}{7} \times r \\ \\ \frac{66 \times 7}{22} = r \\ \\ 3 \times 7 =r \\ \\ r = 21cm$



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