Cosine Rule

Cosine Rule

7th - 9th Grade

10 Qs

quiz-placeholder

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Cosine Rule

Cosine Rule

Assessment

Quiz

Mathematics

7th - 9th Grade

Practice Problem

Medium

CCSS
HSG.SRT.D.11, HSG.SRT.C.7, HSG.SRT.D.10

+2

Standards-aligned

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What rule should you use?

Sine
Cosine

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

What is the measure of angle A?

50 degrees
60 degrees
78 degrees
74 degrees

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following formulas is the Cosine rule?

c2 = a2 + b2 - 4ac + cosA
c2 = a2 - b2 - 2abcosC
c2 = a2 + b2 - 2abcosC
(cos A)/a = (cos B)/b

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Find the unknown side length, c.

6.52

6.38

6.91

6.67

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In the ABC we have AB = 5cm, AC = 6cm, α = 60°. Find the length of the side BC.

√31cm

√29cm

√25cm

√15cm

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Find the missing angle θ

27.9o

29.2o

26.8o

45o

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Find the missing side x

60.5mm

10.3mm

30.1mm

58.1mm

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

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