OBLIQUE TRIANGLES

OBLIQUE TRIANGLES

9th - 10th Grade

10 Qs

quiz-placeholder

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OBLIQUE TRIANGLES

OBLIQUE TRIANGLES

Assessment

Quiz

Mathematics

9th - 10th Grade

Hard

Created by

MARITES BERAN

Used 14+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Which law would you need to solve the given problem?

Law of Sines

Law of Cosines

Both

Neither

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

To solve triangle ABC, where a = 5, b = 6, c = 7. Which of the following would you need to use first?

Law of Sines

Law of Cosines

Pythagorean Theorem

None of the above

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Find the value of side AB.

27.99 units

21.74 units

18.84 units

13.59 units

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

If C = 135°, a = 52, and A = 30°, what is the value of c?

52

52252\sqrt{2}

5263\frac{52\sqrt{6}}{3}

26326\sqrt{3}

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Which of the following would you use to find the length of AC using Sine Rule?

sin 51.381°=sin AC85°\frac{\sin\ 51.3}{81\degree}=\frac{\sin\ AC}{85\degree}

51.3sin 81°=sin 85°AC\frac{51.3}{\sin\ 81\degree}=\frac{\sin\ 85\degree}{AC}

51.3sin 81°=ACsin 85°\frac{51.3}{\sin\ 81\degree}=\frac{AC}{\sin\ 85\degree}

51.3sin 85°=ACsin 81°\frac{51.3}{\sin\ 85\degree}=\frac{AC}{\sin\ 81\degree}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following is the correct formula to find the measure of angle A?

 cos1 a2+b2c22ab\cos^{-1}\ \frac{a^2+b^2-c^2}{2ab}  

 cos1 b2+c2a22bc\cos^{-1}\ \frac{b^2+c^2-a^2}{2bc} 

 cos1 a2+b2c22ab\cos^{-1}\ \frac{a^2+b^2-c^2}{2ab} 

 cos1 a2+c2b22ac\cos^{-1}\ \frac{a^2+c^2-b^2}{2ac} 

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

What is the length of PR?

PR2=9.2+8.5(9.2)(8.5)cos 89°PR^2=9.2+8.5-\left(9.2\right)\left(8.5\right)\cos\ 89\degree

PR2=9.22+8.52(9.2)2(8.5)2cos 89°PR^2=9.2^2+8.5^2-\left(9.2\right)^2\left(8.5\right)^2\cos\ 89\degree

PR2=9.22+8.522(9.2)(8.5)cos 89°PR^2=9.2^2+8.5^2-2\left(9.2\right)\left(8.5\right)\cos\ 89\degree

PR2=9.22+8.52+2(9.2)(8.5)cos 89°PR^2=9.2^2+8.5^2+2\left(9.2\right)\left(8.5\right)\cos\ 89\degree

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