Find the arc length
A) radius equals 8 inches and theta equals 80 degrees
B) radius equals 15 feet and theta equals 2
2007-11-19 03:21:19 · 3 answers · asked by nathan 2 in Science & Mathematics ➔ Mathematics
because S(arc lenght) = theta(in radiant) * radius
so
no1. 8 inch * 80 degree * 2pi radiant /360 degree = ..... inch
no2. 15 feet * 2 degree * 2pi radiant / 360 degree = ..... feet
just fillin the gaps.... hi...hi...hi...
2007-11-19 03:28:48 · answer #1 · answered by Sendy 2 · 0⤊ 0⤋
arc length=8*(80*Ï/180)=11.17 to 2decimal places
arc length=15*2=30 second one is correct if theta is in radians otherwise times 2 by Ï and divide by 180 and then multiply by 15
2007-11-19 11:34:15 · answer #2 · answered by pearls3212 4 · 0⤊ 0⤋
convert degree to radian, then use s=t*theta
80 degree = pi*80/180 in radian
s = 8 * 80 * pi/180 = 11.17
2007-11-19 11:26:21 · answer #3 · answered by norman 7 · 0⤊ 0⤋