7.3 Lesson

作者:BRADY TREE, Katie Drach, Michelle Jones Teacher

主题:角

1) What do you notice about the central angle and its corresponding arc? Move the points around on the circle, does your conclusion hold true? 2) Now click, Show Inscribed Angle D. What do you notice about the Inscribed Angle D, the central angle and its arc? 3) Now click show inscribed angle E. What do you notice about Inscribed angle E and Inscribed angle D? Why does this occur? 4) Click show inscribed quadrilateral. What do you notice about the angles? Move the points around and observe

The vertex of a central angle is _____________ a circle.

选择所有适用项

A
on the center of
B
on
C
outside

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What is the relationship between the central angle and its intercepted arc BC?

选择所有适用项

A
measure of central angle = measure of intercepted arc
B
measure of central angle + measure of intercepted arc = 180
C
measure of central angle = 2 measure of intercepted arc
D
measure of central angle = measure of intercepted arc

检查答案 (3)

7.3 Lesson

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