Question

the length of tangent drawn to a circle with radius r from a point P which is D units away fr iom the centre​

Answer 1

Answer:Cooking Fever by Nordcurrent

https://itunes.apple.com/us/app/cooking-fe

Step-by-step explanation:

Answer 2

The length of tangent is $\sqrt{D^2-r^2}$

Step-by-step explanation:

The length of tangent drawn to a circle with radius r from a point P

Distance of point P from center is D

Please see attachment for figure.

Using PT square theorem of circle:-

$PT^2=PA\cdot PB$

where,

PA = D + r

PB = D - r

PT is length of tangent.

$PT^2=(D+r)\cdot (D-r)$

$PT^2=D^2-r^2$

$PT=\sqrt{D^2-r^2}$

Hence, the length of tangent is $\sqrt{D^2-r^2}$

#Learn more:

https://brainly.in/question/9395656