11.1.1 Lines That Intersect Circles - Worksheet
Example 1: Identify each line or segment that intersects each circle. 1. F 2.
R
S
D
P
m
T
l
Q
E
Example 2: Find the length of each radius. Identify the point of tangency and write the equation of the tangent line at this point. 3. 4.
y
y
4
4
R
S
A B
x
x
–4
4
–4
4
–4
–4
Example 3: 5. The International Space Station orbits Earth at an altitude of 240 mi. What is the distance from the space station to Earth’s horizon to the nearest mile?
172
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