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初三下册:第8章 (Part 3)

Authored by 陈伟菁Tan, Ching

Mathematics

9th Grade

Used 24+ times

初三下册:第8章 (Part 3)
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5 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

图中,TA为圆的切线、A为切点,∠COB为50°,求∠TAC的值。

65°

55°

45°

35°

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

求 x 及 y 的值。

x=35° , y=55°

x=55° , y=35°

x=45° , y=45°

x=25° , y=65°

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

求 x 及 y 的值。

x=70° , y=60°

x=60° , y=70°

x=50° , y=80°

x=80° , y=50°

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

图中,PT切圆于T,PBO为直线。求∠BPT的值。

36°

54°

72°

108°

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

图中,PQR、ROT为直线,PT切圆于T,求∠QPT的值。

35°

45°

55°

65°

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