Disc Cones
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Collapsible Cone / Disc marker Carrying sack Orange
$3.99 |
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New Saucer Disc Cone Set - Soccer Field Marking
$17.99 |
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50 DISC CONES SOCCER FOOTBALL FIELD MARKING COACHING
$26.99 |
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25 Blue Disc Cones Soccer Football Field Marking
$18.99 |
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25 Green Disc Cones Soccer Football Field Marking
$18.99 |
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25 White Disc Cones Soccer Football Field Marking
$18.99 |
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25 Yellow Disc Cones Soccer Football Field Marking
$18.99 |
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50 Soccer Cones Saucer Disc Training Aids many colors
$16.99 |
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25 Soccer Cones Saucer Disc Training Aids many colors
$9.99 |
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10 Soccer Cones Saucer Disc Training Aids many colors
$5.99 |
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50 DISC CONES SOCCER FOOTBALL FIELD MARKING COACHING
$26.99 |
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50 DISC CONES SOCCER FOOTBALL FIELD MARKING COACHING
$26.99 |
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MITRE 12 PAK OF 4" DISC SAFETY CONES FLUORESCENT ORANGE
$6.99 |
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1 Dozen Soccer Field Marker Disc/Cones - 6 Red & 6 Blue
$12.00 |
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1 Dozen Yellow Field Marker Disc/Cones
$9.00 |
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1 Dozen Green Soccer Field Marker Disc/Cones
$9.00 |
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1 Dozen Yellow Field Marker Disc/Cones 4" H X 12" D
$22.00 |
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54" Black Nylon Disc Cone Strap Holder, Holds 150 Discs
$6.00 |
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Galvanized Steel Disc Cone Holder holds 200 Disc Cones
$14.00 |
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12 New Yellow Disc Cones
$12.99 |
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1 Dozen Orange Field Marker Disc/Cones 4" H X 12" D
$22.00 |
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Set of 6 Disc Cone Soccer Yellow
$4.99 |
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1 Dozen Red Field Marker Disc/Cones
$9.00 |
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1 Dozen Field Marker Disc/Cones - 6 Yellow & 6 Green
$9.00 |
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100 MultiColor Disc Cones Soccer Football Field Marking
$42.95 |
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25 Orange Disc Cones Soccer Football Field Marking
$18.99 |
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Set of 100 Disc Cones Soccer Football Field Marking
$42.95 |
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Set of 50 Disc Cones Soccer Football Field Marking
$26.99 |
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50 Multi Color Disc Cones Soccer Football Field Marking
$26.99 |
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Disc Cone Hurdles
$99.95 |
can any one help me please ..im really stuck on this..?
(a) A circle has radius 2cm (in that circle there is an triangle AOB) and the chord AB has length 3cm. AO is 2cm and BO is 2cm. O is the centre of the circle.
(b) consider a paper disc whose boundary is the circle in part (a). The sector AOB is removed from the paper disc and the remaining paper is bent round to form a shallow cone by joining the edge OB to the edge OA.
(i) Which arc becomes the circle that is at the base of the cone? Find the angle subtended by this arc in the original circle (in radians), and hence find the length of the arc.
(ii) Hence find the radius of the circle that is at the base of the cone.
(iii) Find the perpendicular height of the cone.
(iv)Given that the formula for the volume of a cone is
V = 1/3 pie r^2 h
(Where r is the radius of the base and h is the perpendicular
Height), find the volume of the cone in this question.
Angle O = 2(arcsin(1.5)) =97.1808 degrees
Angle of remaining sector = 360 – 97.1808 = 262.8192 degrees
Change to radians:
x/(2pi) = 262.8192/360
x = 262.8192(2pi)/360 = 4.58706 radians
arc length = 4.58706(2) = 9.17412cm [this is the circumference of the base]
height of cone = √[2^2 - (1.46011)^2] = 1.36678cm
Radius of the base:
c = 2(pi)r
r = c/(2pi) = 9.17412/(2pi) = 1.46011cm
volume of the cone = (1/3)(pi)r^2h = (1/3)(pi)( 1.46011)^2(1.36678) = 3.05139cm^3
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Collapsible Cone / Disc marker Carrying sack Orange
$3.99 |
|
|
New Saucer Disc Cone Set - Soccer Field Marking
$17.99 |
|
|
50 DISC CONES SOCCER FOOTBALL FIELD MARKING COACHING
$26.99 |
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25 Blue Disc Cones Soccer Football Field Marking
$18.99 |
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25 Green Disc Cones Soccer Football Field Marking
$18.99 |
