Multiply and when u get yo answer, divide to get your answer
perimeter of regular octagon is given as
= 8a
where a is side of regular octagon
so
perimeter = 8 x 20 = 160
so option c is answer
Answer:
L = 20 cm, W = 10cm
Step-by-step explanation:
P=2L+2W
P=60,L=2W
60 = 2(2W)+2W
60=4W+2W
60=6W
W=10
plug in L=2W
L=2x10
L=20