Question

_____ is the permiter of the sector of a circke if its measure 90 and its radius is 7 cm​

Answer 1

Answer:

Step-by-step explanation:

Here θ = 90 degree

r = 7 cm

Length of-arc = (θ/360) x 2Πr

                               =  (90/360) x 2 x (22/7) x 7

                               =  (1/4) x 2 x 22

                               =   (1/2) x 22

                               =   11 cm