Question

If the length of radius of a semicircular plate is 10-5 cm., then the perimeter of the semi circular plate is (a) 2pai x10-5 cm. ) (b) c (pai +2)x10-5 cm. (C) 2(pai+1)x10-5 cm. (d) (pai+1)x10-5 cm.​

Answer 1

Answer:

option b is correct

(pi+2)10-5

Step-by-step explanation:

perimeter of semicircle is

πr+2r =(π+2)r

i.e

r=10-5

(pi+2)10-5