初三下册:第7章 (Part 3)

初三下册:第7章 (Part 3)

9th Grade

5 Qs

quiz-placeholder

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初三下册:第7章 (Part 3)

初三下册:第7章 (Part 3)

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

Created by

陈伟菁Tan, Ching

Used 8+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

已知 sinθ= 35\frac{3}{5}  , 求 cosθ 及 tanθ。

cosθ= 45\frac{4}{5}     ,tanθ= 34\frac{3}{4}  

cosθ= 54\frac{5}{4}     ,tanθ= 43\frac{4}{3}  

cosθ= 53\frac{5}{3}   ,tanθ= 54\frac{5}{4}  

cosθ= 35\frac{3}{5}     ,tanθ= 45\frac{4}{5}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

求图中 x 及 y 的值。

x=6,y= 636\sqrt{3}

x= 6\sqrt{3} y=6

x=24,y= \frac{\sqrt{3}}{6}

x= \frac{\sqrt{3}}{6} y=24

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

图中 X 是 ________。

仰角

俯角

视角

共轭角

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

以上图中,AB=8cm,BC=10cm,∠B=30°,求∆ABC的面积。

10cm2

20cm2

25cm2

30cm2

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

若cosθ=0.6,求图中x的值。

x=6

x=8

x=10

x=12

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