Solve for Sides and Angles Using Sin Cos and An

In triangle ABC, a = 5, b = 6, c = 7. Which law will be used FIRST to solve the triangle?

• Law of Sines

• Law of Cosines

• Both trig laws

• None of these

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which equation could be used to find the length of side AC?

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which equation could be used to find the measure of angle P?

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which equation could be used to find the length of side AB?

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

If we are given sides a and c along with angle A, which of the following can be found by using the law of sines?

• side b

• angle B

• angle C

• side b, angle B and angle C

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

For the given triangle ABC, \angle C can be found by using the equation

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which equation could be used to solve for the variable?

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Tags

CCSS.HSG.SRT.C.6

Which equation could be used to solve for x?

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CCSS.HSG.SRT.C.6

What equation can be used to solve for x?

• Sin(40°)= x/40 

• Sin(40º)=x/19

• Cos(40º)=x/19

• Tan(40°)=19/x

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CCSS.HSG.SRT.C.6

Calculate cos X. Make sure your fraction is simplified (reduced to lowest terms).

• 6/10

• 6/8

• 8/10

• 4/5

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CCSS.HSG.SRT.C.6