2006-06-23 20:01:13 · 5 answers · asked by sjkrndude 2 in Science & Mathematics ➔ Mathematics
45/360....THATS THE RATIO CZ THE WOLE CIRCLE SUBYENDS A 360 ANGLE WHILE THE ARC SUBTENDS A 45 ANGLE SO THE RATIO OF THE ARC TO CIRCUMFERENCE IS 45/360
2006-06-23 20:06:05 · answer #1 · answered by sphinx 4 · 0⤊ 1⤋
Major arc of the given problem is (360-45)=315degrees
The ratio of major arc to the circumference of the circle is=315/360=7/8
In radian measure we have,
Major arc=2pi-pi/4=7pi/4
And the circumference of the circle =2pi
Consequently, The ratio of major arc to the circumference of the circle is= (7pi/4)/2pi=7/8
2006-06-24 02:51:00 · answer #2 · answered by shasti 3 · 0⤊ 0⤋
1:8 (the 45/360 simplifies to 1/8)
It's like a pizza and the crust is the circumference. If you imagine cutting a piece with a 45 degree angle in the middle, then the crust of that piece is the arc. You can cut eight 45 degree pieces.
http://i50.photobucket.com/albums/f322/algerface/8ae38483.jpg
2006-06-23 20:53:01 · answer #3 · answered by Mike 3 · 0⤊ 0⤋
Major arc subtends an angle of 315
Whole circle subtends an angle of 360
ratio of major arc to the circumference of the circle IS 7:8
2006-06-23 21:09:54 · answer #4 · answered by arunjayendran0707 2 · 0⤊ 0⤋
1:8
2006-06-23 21:56:19 · answer #5 · answered by anil kumar p 1 · 0⤊ 0⤋