11. Circles
United States of America
Grades 9-12
11.02 Lines tangent to a circle
Adaptive
Worksheet
Interactive practice questions
In the figure below, $AC$AC is tangent to both circles.
a
Show that $\angle OBP$∠OBP is a straight angle.
b
Therefore what can we say about points $O$O, $B$B and $P$P?
They form a triangle.
A
They are collinear.
B
Easy
2min
In the diagram, $AC$AC is a tangent to the circle with center $O$O. What is the measure of $x$x?
Easy
< 1min
If $\overline{BA}$BA is a tangent to the circle, determine the value of $x$x showing all steps of working.
Easy
1min
State the value of $a$a in the following diagram.
Easy
2min
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