Lesson 4 Circling Triangles Develop Understanding
Factor.
1.
2.
3.
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10.
Circle
11.
Circle
12.
Point
Given:
13.
Write the equation of a circle that passes through the point
14.
Write the equation of a circle that passes through the point
15.
Let point
Draw a circle centered at the origin that passes through point
. Use the Pythagorean theorem to identify three additional points in each of the Quadrants I, II, and III that lie on the circle and do not contain the numbers and . Label the points on the circle. Write the equation of the circle.
Each arc is shown in blue.
Each indicated angle is the central angle that intercepts the given arc.
16.
Given:
Find
17.
Given:
Find
18.
Given:
Find
19.
Given:
Find
20.
Each radius and arc length includes a unit such as feet or meters. Explain why radian measures do not include a unit.