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eroshea
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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
eroshea Group Title
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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Shadowys Group TitleBest ResponseYou've already chosen the best response.1
dw:1353418479537:dw
 one year ago

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

Shadowys Group TitleBest 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

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

Shadowys Group TitleBest 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

Shadowys Group TitleBest 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

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

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

eroshea Group TitleBest ResponseYou've already chosen the best response.0
thanks :))
 one year ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
you're welcome :)
 one year ago
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