nayeligarcia4720 nayeligarcia4720
  • 01-05-2021
  • Mathematics
contestada

B
68°
A
E
D
EB
15. What is the length of CD? (Use 3.14 for $7)
a
31.68
b
29.31
23.14
17.79

B 68 A E D EB 15 What is the length of CD Use 314 for 7 a 3168 b 2931 2314 1779 class=

Respuesta :

akposevictor
akposevictor akposevictor
  • 06-05-2021

Answer:

b = 29.31

Step-by-step explanation:

Given:

m<CEB = 68°

EB = radius = 15

Required:

Length of arc CD

Solution:

Length of arc CD = θ/360 × 2πr

Where,

θ = 180° - 68° = 112° (angles on a straight line)

π = 3.14

r = radius = 15

Plug in the values

Length of arc CD = 112/360 × 2 × 3.14 × 15

= 29.3066667

≈ 29.31

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