單元10

單元10

10th Grade

10 Qs

quiz-placeholder

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單元10

單元10

Assessment

Quiz

Mathematics

10th Grade

Medium

Created by

六家高中卓駿焰 六家高中卓駿焰

Used 10+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

圖中 AC\overline{AC}  為 θ\theta  的?

斜邊

對邊

鄰邊

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

已知 θ\theta  為銳角,有關三角函數的定義何者正確?(複選題)

 sinθ= ABBC\sin\theta=\ \frac{\overline{AB}}{\overline{BC}}  (對邊分之斜邊)

 sinθ= BCAB\sin\theta=\ \frac{\overline{BC}}{\overline{AB}}  (斜邊分之對邊)

 cosθ= ACBC\cos\theta=\ \frac{\overline{AC}}{\overline{BC}}  (對邊分之鄰邊)

 cosθ= BCAB\cos\theta=\ \frac{\overline{BC}}{\overline{AB}}  (斜邊分之對邊)

 tanθ= BCAC\tan\theta=\ \frac{\overline{BC}}{\overline{AC}}  (鄰邊分之對邊)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 sin45° =?\sin45\text{\degree}\ =?  

1

0.707106781

 22\frac{\sqrt{2}}{2}  

 12\frac{1}{2}  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 cos30° =?\cos30\text{\degree}\ =?  

 32\frac{\sqrt{3}}{2}  

0.866025403

 12\frac{1}{2}  

 22\frac{\sqrt{2}}{2}  

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

 ABC\triangle ABC  中, BDAC\overline{BD}\perp\overline{AC}  。已知 BC=26, cosC=1213, \overline{BC}=26,\ \cos C=\frac{12}{13},\   

 tanA=54\tan A=\frac{5}{4}  ,則 AC=?\overline{AC}=?  

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

已知 θ\theta  為銳角,且 sinθ+cosθ=53\sin\theta+\cos\theta=\frac{5}{3}  ,求 sinθcosθ=?\sin\theta\cdot\cos\theta=?  

(答案請寫分數)

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

 cos230°+cos240°+cos250°=?\cos^230\degree+\cos^240\degree+\cos^250\degree=?  

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