if the circumference of the circle below is 25cm, what is the length or arc AB btw the circle has a degree of 70 in between arc AB
+33661 The arc length of a segment is proportional to the angle of the arc, so:
length of arc AB/70 = length of circumference/360 (because there are 360° all the way round)
length of arc AB/70 = 25/360
Multiply both sides by 70
length of arc AB = 70*25/360 cm
I'll leave you to crunch the numbers
.
+33661 The arc length of a segment is proportional to the angle of the arc, so:
length of arc AB/70 = length of circumference/360 (because there are 360° all the way round)
length of arc AB/70 = 25/360
Multiply both sides by 70
length of arc AB = 70*25/360 cm
I'll leave you to crunch the numbers
.
