Respuesta :
Answer: The answer in 20° in USA TestPrep
Step-by-step explanation:
S=2πr× n°/360°
n°=360s/2πr= 360(64π/9)/2π(4)=320
This,∆H=360-320=40
Then, ∆RST=1/2 ∆H= 1/2(40)=20
Answer: The answer in 20° in USA TestPrep
Step-by-step explanation:
S=2πr× n°/360°
n°=360s/2πr= 360(64π/9)/2π(4)=320
This,∆H=360-320=40
Then, ∆RST=1/2 ∆H= 1/2(40)=20