Question

find the perimeter of a quarter circle whose radius is 10cm ​

Answer 1

Answer:

51.42--

22/7*10+2*10

220/7+20

220+140/7

360/7

=51.42--

Answer 2

Answer:

35.71 cm

Step-by-step explanation:

Radius = 10 cm

Perimeter of full circle = 2 $\pi$ r

                                     = 2 * 22/7 * 10

                                     = 62.85 cm (approx.)

Therefore, quarter of curved perimeter = 1/4 * 62.85

                                                                  = 15.71 cm

Therefore, Quarter perimeter = 15.71 + ( 10*2 )

                                                  = 15.71 + 20

                                                  = 35.71 cm or 36 cm ( approx.)