Solving Triangles Review

What method do you need to use to find side a?

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

True or False: You can use SohCahToa to solve this triangle?

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find side c. Round to the nearest whole number.

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find angle C. Round to the nearest whole number.

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which would be correct if you are trying to find side a?

• $120^2=12^2+29^2-2\left(12\right)\left(29\right)\cos\left(a\right)$

• $a^2=12^2+29^2-2\left(12\right)\left(29\right)\cos\left(a\right)$

• $\frac{a}{\sin\left(120\right)}=\frac{29}{\sin\left(12\right)}$

• $\frac{a}{\sin\left(120\right)}=\frac{12}{\sin\left(29\right)}$

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Find the missing side. Round to the nearest whole number:

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve the triangle:

• B = 54, A = 67, c = 12

• B = 30, A = 91, c = 12

• B= 49, A = 72, c = 12

• B= 120, A = 19, c = 12

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CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Solve the triangle:

• A= 34, a = 12, c = 15

• A= 63, a = 13, c = 90

• A = 8, a = 27, c = 15

• A= 27, a= 8, c = 15

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CCSS.HSG.SRT.C.8