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°
Answer:
x² - 9
Step-by-step explanation:
A difference of squares has the form
a² - b²
Thus
x² - 9
= x² - 3² ← is a difference of squares
Answer:
53
Step-by-step explanation:
