GED Math : Angle Geometry

Study concepts, example questions & explanations for GED Math

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Example Questions

Example Question #51 : Complementary Angles

Find the the measure of angle B if it is complement of angle A:

Possible Answers:

Correct answer:

Explanation:

If two angles are complementary, that means the sum of their degrees of measure will add up to 90. In order to find the measure of angle B, subtract angle A from 90 like shown:

This gives us a final answer of 72 degrees for angle B.

Example Question #52 : Complementary Angles

Find the the measure of angle B if it is complement of angle A:

Possible Answers:

Correct answer:

Explanation:

If two angles are complementary, that means the sum of their degrees of measure will add up to 90. In order to find the measure of angle B, subtract angle A from 90 like shown:

This gives us a final answer of 3 degrees for angle B.

Example Question #53 : Complementary Angles

Find the the measure of angle B if it is complement of angle A:

Possible Answers:

Correct answer:

Explanation:

If two angles are complementary, that means the sum of their degrees of measure will add up to 90. In order to find the measure of angle B, subtract angle A from 90 like shown:

This gives us a final answer of 51 degrees for angle B.

Example Question #54 : Complementary Angles

Find the the measure of angle B if it is complement of angle A:

Possible Answers:

Correct answer:

Explanation:

If two angles are complementary, that means the sum of their degrees of measure will add up to 90. In order to find the measure of angle B, subtract angle A from 90 like shown:

This gives us a final answer of 37 degrees for angle B.

Example Question #55 : Complementary Angles

Find the the measure of angle B if it is complement of angle A:

Possible Answers:

Correct answer:

Explanation:

If two angles are complementary, that means the sum of their degrees of measure will add up to 90. In order to find the measure of angle B, subtract angle A from 90 like shown:

This gives us a final answer of 81 degrees for angle B.

Example Question #486 : Geometry And Graphs

If an angle measures  degrees, find the measurement of the other angle such that the two angles are complementary.

Possible Answers:

Correct answer:

Explanation:

Two angles are classified as complementary if an only if the sum of the angles equals to exactly 90 degrees.


Since we know the measurement of one angle, and we know the rule about complementary angles, let's find the other angle:

The other angle is simply the total sum of both angles minus the given angle.
The total sum of the angles is , and the given angle is .

So, we will subtract  from .

Other angle=

The other angle has a measurement of  degrees.

 

Example Question #1 : Supplementary Angles

Thingy

Refer to the above diagram. 

. Evaluate .

Possible Answers:

Correct answer:

Explanation:

 and  form a linear pair, so they are supplementary - that is, their degree measures total , so

 and  are acute angles of right triangle , so they are complementary - that is, their degree measures total , so

Example Question #2 : Supplementary Angles

Angles A, B, and C are supplementary. The measure of angle A is . The measure of angle B is . The measure for angle C is . Find the value of .

Possible Answers:

Correct answer:

Explanation:

Since angles A, B, and C are supplementary, their measures add up to equal 180 degrees. Therefore we can set up the equation as such:

-or-

 

Combine like terms and solve for :

Example Question #3 : Supplementary Angles

Angles A and B are supplementary. The measure of angle A is . The measure of Angle B is . Find the value of .

Possible Answers:

No solution

Correct answer:

Explanation:

Since angles A and B are supplementary, thier measurements add up to equal 180 degrees. Therefore we can set up our equation like such:

-or-

 

Combine like terms and solve for :

Example Question #4 : Supplementary Angles

Angles A, B, and C are supplementary. The measure of angle A is . The measure of angle B is . The measure for angle C = . What are the measure for the three angles?

Possible Answers:

No solution

Correct answer:

Explanation:

Since angles A, B, and C are supplementary, their measures add up to equal 180 degrees. Therefore we can set up an equation as such:

-or-

 

Combine like terms and solve for x:

 

Plug  back into the three angle measurements:

 4

 

 

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