The learner will solve for angles in a right triangle using sine, cosine, or tangent.
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
If side a is 12 inches and side b is 15 inches, what is the measure of angle A? Round to a whole number.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
If side a is 12 inches and side b is 15 inches, what is the measure of angle A? Round to a whole number.
Correct Answer
39 degrees
Angle A = tan-1(12/15) = 390
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
If side a is 12 inches and side b is 15 inches, what is the measure of angle A? Round to a whole number.
Your Answer
Correct Answer
39 degrees
Angle A = tan-1(12/15) = 390
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Side b is 8 meters and side a is 9 meters. What are the measures of angles A and B? Round your answers to whole numbers.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
Side b is 8 meters and side a is 9 meters. What are the measures of angles A and B? Round your answers to whole numbers.
Correct Answer
angle A = 48 degrees; angle B = 42 degrees
Angle A = tan-1(9/8) = 480; Angle B = 900 - 480 = 420
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
Side b is 8 meters and side a is 9 meters. What are the measures of angles A and B? Round your answers to whole numbers.
Your Answer
Correct Answer
angle A = 48 degrees; angle B = 42 degrees
Angle A = tan-1(9/8) = 480; Angle B = 900 - 480 = 420
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
What is the measure of angle B? Round to a whole number.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
What is the measure of angle B? Round to a whole number.
Correct Answer
44 degrees
Angle B = cos-1(50/70) = 440
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
What is the measure of angle B? Round to a whole number.
Your Answer
Correct Answer
44 degrees
Angle B = cos-1(50/70) = 440
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
If side a is 3 inches and side b is 7 inches, what is the measure of angle A? Round to the nearest whole number.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
If side a is 3 inches and side b is 7 inches, what is the measure of angle A? Round to the nearest whole number.
Correct Answer
23 degrees
Using the tangent function, angle A = tan-1 (3/7) = 230
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
If side a is 3 inches and side b is 7 inches, what is the measure of angle A? Round to the nearest whole number.
Your Answer
Correct Answer
23 degrees
Using the tangent function, angle A = tan-1 (3/7) = 230
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
If side b is 17 km and side c is 21 km, what are the measures of angles A and B? Round to whole numbers.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
If side b is 17 km and side c is 21 km, what are the measures of angles A and B? Round to whole numbers.
Correct Answer
angle A = 36 degrees; angle B = 54 degrees
Angle A = cos-1(17/21) = 360; angle B = 900 - 360 = 540
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
If side b is 17 km and side c is 21 km, what are the measures of angles A and B? Round to whole numbers.
Your Answer
Correct Answer
angle A = 36 degrees; angle B = 54 degrees
Angle A = cos-1(17/21) = 360; angle B = 900 - 360 = 540
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
If side c is 67 inches and side b is 20 inches, what is the measure of angle A? What is the measure of angle B? Round your answers to the nearest whole degree.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
If side c is 67 inches and side b is 20 inches, what is the measure of angle A? What is the measure of angle B? Round your answers to the nearest whole degree.
Correct Answer
angle A = 73 degrees; angle B = 17 degrees
Angle A = cos-1 (20/67) = 730; angle B = 900 - 730 = 170
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
If side c is 67 inches and side b is 20 inches, what is the measure of angle A? What is the measure of angle B? Round your answers to the nearest whole degree.
Your Answer
Correct Answer
angle A = 73 degrees; angle B = 17 degrees
Angle A = cos-1 (20/67) = 730; angle B = 900 - 730 = 170
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
What is the measure of angle B if side a is equal to 10 feet and side c is equal to 22 feet? Round to a whole number.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
What is the measure of angle B if side a is equal to 10 feet and side c is equal to 22 feet? Round to a whole number.
Correct Answer
63 degrees
The measure of angle B = cos-1 (10/22) = 63 degrees
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
What is the measure of angle B if side a is equal to 10 feet and side c is equal to 22 feet? Round to a whole number.
Your Answer
Correct Answer
63 degrees
The measure of angle B = cos-1 (10/22) = 63 degrees
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
If side c is equal to 50 meters and side b is equal to 42 meters, what is the measure of angle A? Round to the nearest whole number.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
If side c is equal to 50 meters and side b is equal to 42 meters, what is the measure of angle A? Round to the nearest whole number.
Correct Answer
33 degrees
Angle A = cos-1(42/50) = 330
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
If side c is equal to 50 meters and side b is equal to 42 meters, what is the measure of angle A? Round to the nearest whole number.
Your Answer
Correct Answer
33 degrees
Angle A = cos-1(42/50) = 330
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
If side a is 17 cm and side c is 20 cm, what is the measure of angle A? Round to a whole number.
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Correct!
If side a is 17 cm and side c is 20 cm, what is the measure of angle A? Round to a whole number.
Correct Answer
58 degrees
The measure of angle A: angle A = sin-1 (17/20) = 580
Question 1 of 10
Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
Incorrect
If side a is 17 cm and side c is 20 cm, what is the measure of angle A? Round to a whole number.
Your Answer
Correct Answer
58 degrees
The measure of angle A: angle A = sin-1 (17/20) = 580
Question 1 of 10
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- 4/21/2014
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- 4/21/2014
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Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle by Fox Valley Technical College is licensed under a Creative Commons Attribution 3.0 Unported License.