Chapter 9: Q9. (page 330)
Name the 4 radii (none are drawn in the diagram).

Short Answer
The radii are .
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Chapter 9: Q9. (page 330)
Name the 4 radii (none are drawn in the diagram).

The radii are .
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In exercises find the measure of the arc.
Find the measure of central

Given: Two tangents circles; is a common external tangent;
is the common internal tangent.
Discover and prove something interesting about point
Discover and prove something interesting about .

Drawtwo congruent circles with radii each passing through the centre of other and to find length of their common chord.
a. Draw a circle. Place points A,B, and C on it in such positions that
\does not equal
b. Does your example in part (a) contradict Postulate ?
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