Answer:
Step-by-step explanation:
The perimeter is the arc length plus the two radius lines.
Arc length is:
s = (θ/360) 2πr
So the perimeter is:
P = (θ/360) 2πr + 2r
Given that θ=135 and r = 11:
P = (135/360) 2π(11) + 2(11)
P = 8.25π + 22
P ≈ 47.9
So the perimeter is greater than 47.5 cm.
