The ACT will test whether you know where angles larger than 360 degrees lie, and the unit circle helps us visualize this. There are 360 degrees in a circle, but we can just keep swinging the arm of the angle around counterclockwise (just like the hands of the clock) to get to an angle bigger than 360.

The **ACT** will test whether you know where angles larger than 360 degrees lie, and the **unit circle** helps us visualize this. There are 360 degrees in a **circle**, but we can just keep swinging the arm of the angle around counterclockwise (just like the hands of the clock) to get to an angle bigger than 360.

Similarly, how do you know when to use Sin Cos or tan? If you have the hypotenuse and the adjacent side, then **use cosine**. If you have the adjacent and the opposite sides, then **use** tangent. Or, if you have any two numbers from the first group, (let’s say you have an angle and the hypotenuse and you need to find the length of the opposite side), then **use** that group.

Also, should your calculator be in radians or degrees for the act?

There you learn that angles can be measured in **radians** as well as in **degrees**. As you work **on** problems in the **ACT** Math section, you need to pay attention to whether or not the problem involves angles measured in **degrees** or **radians**, and then you **should** set **your calculator** to match.

Is Trig on the act?

**Trigonometry** is the branch of math that deals with right triangles and the relationships between their sides and angles. There will generally be around 4-6 questions questions on the **ACT** that deal with **trigonometry** (the official **ACT** guidelines say that **trigonometry** problems make up 7% of the test).

### What math is on the ACT test?

The ACT Math Test usually breaks down into 6 questions types: pre-algebra, elementary algebra, and intermediate algebra questions; plane geometry and coordinate geometry questions; and some trigonometry questions.

### What is sine and cosine?

Sine and cosine — a.k.a., sin(θ) and cos(θ) — are functions revealing the shape of a right triangle. Looking out from a vertex with angle θ, sin(θ) is the ratio of the opposite side to the hypotenuse , while cos(θ) is the ratio of the adjacent side to the hypotenuse .

### What mode should my calculator be in physics?

The next mode setting is the most important one when dealing with angle measures in any course (trigonometry, precalculus, calculus, physics, etc). If you are working with radian values such as p/2, p/3, or 5p/6, you MUST have your calculator set in Radian mode to evaluate trig functions of those values.

### Should I be in Radian or degree mode?

2 Answers. If there is a degree symbol, ∘, then use degree mode. If there is no degree symbol, then use radian mode. Even if there is no π in the number.

### Do u need a graphing calculator for the act?

Examinees may use any 4-function, scientific, or graphing calculator, as long as it is not on the prohibited list and it is modified (see below), if needed. Calculators may only be used on the mathematics test, including ACT WorkKeys Applied Math. Sharing calculators during the test is not permitted.

### Are radians on the SAT?

SAT Radians Practice Problems radians. Hence, the value of a is 6.

### How do you tell if there are two triangles law of sines?

To determine if there is a 2nd valid angle: See if you are given two sides and the angle not in between (SSA). Find the value of the unknown angle. Once you find the value of your angle, subtract it from 180° to find the possible second angle. Add the new angle to the original angle.

### How many triangles does SSA have?

two triangles