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From point A 10cm from a plane P, a perpendicular line AC is drawn passing through a circle with canter C and radius of 8 cm in the plane. At any point B on this circle, a tangent BD is drawn 18cm in length. FInd the distance from A to D.
> i need the illustration
 one year ago
 one year ago
From point A 10cm from a plane P, a perpendicular line AC is drawn passing through a circle with canter C and radius of 8 cm in the plane. At any point B on this circle, a tangent BD is drawn 18cm in length. FInd the distance from A to D. > i need the illustration
 one year ago
 one year ago

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ShadowysBest ResponseYou've already chosen the best response.1
dw:1353418479537:dw
 one year ago

erosheaBest ResponseYou've already chosen the best response.0
how can i solve this one?
 one year ago

ShadowysBest ResponseYou've already chosen the best response.1
well, you'll need to find CD. to do that, note that BDC is a right angle triangle.
 one year ago

erosheaBest ResponseYou've already chosen the best response.0
how does it became a right triangle?
 one year ago

ShadowysBest ResponseYou've already chosen the best response.1
CB and BD are given. so this calls for pythagoras theorem. Then also note that ADC is also a right angle triangle. AC is given, CD is found.
 one year ago

ShadowysBest ResponseYou've already chosen the best response.1
Well, since it is a tangent, tangents always meet the circle at right angles.
 one year ago

erosheaBest ResponseYou've already chosen the best response.0
dw:1353476601742:dw so the answer for AD is 22.1 cm??
 one year ago

ShadowysBest ResponseYou've already chosen the best response.1
yh. lol you've got it!
 one year ago
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