Answer:
As the property of angle on circle:
Arc DF = 2 x angle DEF = 2 x 72 = 144 deg
=> Option B is correct
Hope this helps!
:)
Step-by-step explanation:
a=-7
r=21/-7=-3
Answer/Step-by-step explanation:
Recall:
a.
b.
c.
22
ST is y and SU is 2y-4.
Note that SU = ST + TU = y + 18
So we have 2y - 4 = y + 18
2y - 4 = y + 18
2y = y + 22
y = 22
So ST is 22.
