Pretest

Question 1

What is the approximate value of k ? Use the law of sines to find the answer.

Revolt · Accepted Answer

D: 5 point 1  units

Question 2

What is the approximate measure of angle cap f ? Use the law of sines to find the answer.

Revolt · Accepted Answer

D: 44.4 degrees

Question 3

Law of sines: sine of cap A over A is equal to sine of cap b over b is equal to sine of cap c over c In triangle FGH , h is equal to 10 , m angle cap f is equal to 65 degrees , and m angle cap g is equal to 35 degrees What is the length of g ? Use the law of sines to find the answer.

Revolt · Accepted Answer

D: 5 point 8  units

Question 4

A support beam needs to be placed at a 28 degrees angle of elevation so that the top meets a vertical beam 1 point 6 meters above the horizontal floor. The vertical beam meets the floor at a 90 degrees angle. Law of sines: sine of cap A over A is equal to sine of cap b over b is equal to sine of cap c over c Approximately how far from the vertical beam should the lower end of the support beam be placed along the horizontal floor?

Revolt · Accepted Answer

A: 3 point 4  meters

Question 5

Law of sines: sine of cap A over A is equal to sine of cap b over b is equal to sine of cap c over c In triangle ABC , c is equal to 5 point 4 , A is equal to 3 point 3 , and m angle cap A is equal to 20 degrees What are the possible approximate lengths of b ? Use the law of sines to find the answer.

Revolt · Accepted Answer

A: 2 point 0  units and  4 point 6  units

Question 6

What is the best approximation of the value of w ?

Revolt · Accepted Answer

C: 4 point 0 centimeters

Question 7

Which expression represents the length of line segment BC ?

Revolt · Accepted Answer

C: the fraction with numerator 3 times sine times open paren 66 degrees close paren and denominator sine of open paren 38 degrees close paren

Question 8

Which equation is true for triangle QRS ?

Revolt · Accepted Answer

A: sine of open paren 100 degrees close paren over 3 point 5 is equal to sine of cap s over 2 point 4

Question 9

What is the value of z , rounded to the nearest tenth? Use the law of sines to find the answer.

Revolt · Accepted Answer

A: 3 point 2  units

Question 10

Use the law of sines to find the value of y Round to the nearest tenth. Law of sines: sine of cap A over A is equal to sine of cap b over b is equal to sine of cap c over c

Revolt · Accepted Answer

B: 2 point 5  units

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