Answer:
a.) x = 5
x+5-2=8
x+3=8
x=8-3
x=5
Answer:
3:7
Step-by-step explanation:
a:b
a=3
b=4
b:c
b=5
c=7
a:c
3:7
Answer:
Step-by-step explanation:

Answer:
CD = 20°
Step-by-step explanation:
arc FA = arc CD because <ABF = <CBD (vertical angles)
Given <ABF = 20° so <ABF = <CBD = 20°
The central angle is also known as the arc's angular distance
so arc CD = <CBD = 20°