Circle Properties Activity 3

主題：圓

Instructions: In the diagram below, OA and OC are radii of the circle. AB and BC are chords in the circle. Angles AOC and ABC are subtended by the arc AC. Move points A, B and C around such that the values of the angles change.

What do you observe?

勾選所有適當的選項

A
Angle AOC = Angle ABC
B
Angle AOC = 2 (Angle ABC)
C
Angle AOC = 3 (Angle ABC)
D
Angle AOC = 4 (Angle ABC)

核對我的答案 (3)

What can you conclude?

勾選所有適當的選項

A
The angle at the centre is the same as the angle at the circumference
B
The angle at the centre is twice the angle at the circumference
C
The angle at the centre is half the angle at the circumference.

核對我的答案 (3)

探索資源

Illustrating Concepts of a Circle 2
Parallel Perpendicular
Converse of the Pythagorean Theorem
Change of Base for Logarithms Algebra 2
Four-bar linkage with scripts

探索主題

外接圓
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複數

Circle Properties Activity 3

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