# What is its complement?

Asked By: Xeila Anocibar | Last Updated: 18th January, 2020
Category: science space and astronomy
4.9/5 (216 Views . 34 Votes)
An angle is its own complement. Find the measure of a suppllement to this angle. Gretchen, If you have an angle and want to know its complement, you subtract it from 90 degrees.

Correspondingly, how do you find the complement?

To determine the supplement, subtract the given angle from 180. 180 - 43 = 137° The supplement of 43° is 137°. To determine the complement, subtract the given angle from 90. 90 - 43 = 47° The complement of 43° is 47°.

Similarly, what is the supplement of the complement? The supplement of an angle is the angle that has to be added to make 180°. The complement is the angle that has to be added to make 90°. So the supplement of 110° is 70° because 110 + 70 = 180. Then the complement of 70° is 20° because 70 + 20 = 90.

Also to know is, what is the complement rule?

A mutually exclusive pair of events are complements to each other. For example: If the desired outcome is heads on a flipped coin, the complement is tails. Complement rule. The Complement Rule states that the sum of the probabilities of an event and its complement must equal 1, or for the event A, P(A) + P(A') = 1.

What is the measure of complement?

Hi Tom. The measure of the complement of any angle A is ninety degrees minus the measure of angle A. So if you have an angle that is 20 degrees, then the complement angle measures 70 degrees.

### What is the complement of 45 degrees?

The complement of 45° is the angle that when added to 45° forms a right angle (90° ).

### What is the complement of 65 degrees?

The complement of 65° is the angle that when added to 65° forms a right angle (90° ).

### How do you find supplementary angles?

Example 1:
1. Let the measure of one of the supplementary angles be a .
2. Measure of the other angle is 2 times a .
3. So, measure of the other angle is 2a .
4. If the sum of the measures of two angles is 180° , then the angles are supplementary.
5. So, a+2a=180°
6. 3a=180°
7. To isolate a , divide both sides of the equation by 3 .

### What is the complement principle?

In statistics, the complement rule is a theorem that provides a connection between the probability of an event and the probability of the complement of the event in such a way that if we know one of these probabilities, then we automatically know the other one.

### What is the complement in math?

The complement is the amount you must add to something to make it "whole". For example, in geometry, two angles are said to be complementary when they add up to 90°. One angle is said to be the complement of the other. In the figure below, angles PQR and RQS are complementary.

### What is the complement of 30?

If your angle is 30 degrees, then its complement is 60 degrees because 60 + 30 = 90. If your angle is 30 degrees, then its supplement is 150 degrees because 30 + 150 = 180.

### How do you find the missing angle?

To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.

### How do you find the complement of a number?

Steps to find (b-1)'s complement: To find (b-1)'s complement,
1. Subtract each digit of the number from the largest number in the number system with base .
2. For example, if the number is a three digit number in base 9, then subtract the number from 888 as 8 is the largest number in base 9 number system.

### What does a complement mean in statistics?

Complement. The complement of an event is the event not occurring. Thus, the complement of Event A is Event A not occurring. The probability that Event A will not occur is denoted by P(A').

### How do you know if two events are complementary?

Complementary events are two outcomes of an event that are the only two possible outcomes.
1. This is like flipping a coin and getting heads or tails.
2. Rolling a die and getting a 1 or 2 are not complementary since there are other outcomes that may happen (3, 4, 5, or 6).

### What are examples of complementary events?

Two events are said to be complementary when one event occurs if and only if the other does not. The probabilities of two complimentary events add up to 1. For example, rolling a 5 or greater and rolling a 4 or less on a die are complementary events, because a roll is 5 or greater if and only if it is not 4 or less.

### What is P a B?

Conditional probability: p(A|B) is the probability of event A occurring, given that event B occurs. The probability of event A and event B occurring. It is the probability of the intersection of two or more events. The probability of the intersection of A and B may be written p(A ∩ B).

### What is the complement of a probability?

Probability - By Complement. The complement of an event is the subset of outcomes in the sample space that are not in the event. A complement is itself an event. The complement of an event A is denoted as A c A^c Ac or A′. By consequence, the sum of the probabilities of an event and its complement is always equal to 1.

### How do you find the complement in probability?

A mutually exclusive pair of events are complements to each other. For example: If the desired outcome is heads on a flipped coin, the complement is tails. The Complement Rule states that the sum of the probabilities of an event and its complement must equal 1, or for the event A, P(A) + P(A') = 1.

### What is the probability that the spinner lands on B or E?

It is more likely to land on a vowel. It has a 5 out of 8 chance of landing on A or E. There is only a 3 out of 8 chance that it will land on B, C, or F.

### What does C mean in probability?

P(AB) means the probability that events A and B occur. You could write it P(A∩B). The superscript c means "complement" and Ac means all outcomes not in A.

### What is the difference between supplement and complement?

5 Answers. Supplement would refer to extra/additional information in this context. Complement refers to an item that completes or goes well with another item. If the addition of an example makes your answer more complete though, you could certainly refer to it as a complement.