In this lesson, we will learn how to find the equation of a circle using tangents.
Q1:
Determine the equation of a circle whose radius equals 8 length units and center 𝑀 lies in the first quadrant, given that the two straight lines 𝑥=10 and 𝑦=6 are two tangents to the circle.
Q2:
If the 𝑥-axis is a tangent to a circle whose equation is 𝑥+𝑦+𝑚𝑥+18𝑦−12−4𝑚=0, find all possible values of 𝑚.
Q3:
Find the general form of the equation of a circle that is tangent to the 𝑥-axis and has center (−19,2).
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