Constructing Tangents to Circles
Geometry · Flashcards · Application
GEOMETRY · FLASHCARDS
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QUESTION
Identify whether two tangents exist if
O
P
=
11
OP=11
O
P
=
11
and
r
=
11
r=11
r
=
11
for circle centered at
O
O
O
.
QUESTION
What is
O
P
OP
O
P
if the radius is
r
=
9
r=9
r
=
9
and the tangent length is
P
T
=
12
PT=12
P
T
=
12
?
QUESTION
What is the value of
P
T
PT
P
T
if
O
P
=
25
OP=25
O
P
=
25
and the circle radius is
r
=
7
r=7
r
=
7
?
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ANSWER
24
24
24
. Using
P
T
=
25
2
−
7
2
=
625
−
49
=
576
=
24
PT = \sqrt{25^2 - 7^2} = \sqrt{625 - 49} = \sqrt{576} = 24
P
T
=
2
5
2
−
7
2
=
625
−
49
=
576
=
24
.
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