*By using this formula, we can solve any kind of triangle for a missing side or missing angle. It tells us that in order to find a missing angle, we need to know the measurement of the side opposite the angle we are looking for and the measurement of another side along with its opposite angle. Anyone can earn credit-by-exam regardless of age or education level.Look carefully at the formula and you will see that there are two equal signs. What information do we need in order to solve this formula? If we are given a triangle problem to solve, we need to look at what information is given to us and then we can decide which two parts of the law of sines we are going to use. Okay, since we are looking for a missing side, that means that we need to know angle B and another measurement of a different side along with its opposite angle. Note: Unless you are told to give your answer in decimal form, or to round, or in some other way not to give an "exact" answer, you should probably assume that the "exact" form is what they're wanting.*

A good first step, after reading the entire exercise, is to draw a right triangle and try to figure out how to label it.

Once you've got a helpful diagram, the math is usually pretty straightforward.

Easy to use calculator to solve right triangle problems.

Here you can enter two known sides or angles and calculate unknown side ,angle or area.

So, what information do we need to find a missing side?

Well, let's look at what happens when we use just two parts of the formula. If we want to find side c, then we need to know all the other letters, we need to know side a, angle A and angle C. It tells us that if we are looking for a particular side, we need to know the measurement of one side along with its opposite angle and then we need to know the measurement of the angle opposite the side we are looking for. That means that not only are two of the sides equal but two of the angles are also equal. Notice that this triangle gives an angle outside of the triangle.Here is one method: Step 1: Determine the measure of the angle adjacent to 148°.The two angles make a straight line and therefore have a sum of 180°.To determine to measure of the unknown angle, be sure to use the total sum of 180°.Recall that your basic trig functions of sine, cosine, and tangent can easily be found by using a right triangle. It tells you that: While our basic trig functions are fractions of the various sides of a right triangle, by using our trig functions in a more elaborate way, we can actually use them to solve problems related to any kind of triangle, not just right triangles. If we are finding an angle, we remember to use the inverse sine operation at the end to find the measurement of our angle.This opens up a whole new world of problems that we can solve using trigonometry. It looks like this: The small lower case letters refer to the sides of a triangle. After this lesson is finished, you should be able to: Did you know…The larger upper case letters refer to the corresponding angles of the triangle. We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities.So, angle A is opposite side a, angle B is opposite side b, and angle C is opposite side c. You can test out of the first two years of college and save thousands off your degree.This means that we can use any two parts of this formula; we don't have to use all three parts. For example, if we are looking for side c and we are given angle C, side b, and angle B, then we will use the formula b/sin B = c/sin C because this contains all the information I have been given and want to find. The formula does tell us that all three parts are equal to each other. Let's look at a couple of examples to see how this is done.

## Comments How To Solve Triangle Problems

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