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Duke University

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UCLA

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Unweighted GPA:** 3.7**

1.0

4.0

SAT: **720 math**

200

800

| **800 verbal**

200

800

Low accuracy (4 of 18 factors)

Hey guys, I'm studying for the ACT and I'm a bit overwhelmed with all the formulas I need to remember. Can you recommend any websites or resources that have the essential formulas to keep in mind for the test? Thanks!

5 months ago

Sure! Don't let the ACT math section overwhelm you, as many of the problems can be solved using basic algebra and geometry skills. While you may need specific formulas, the following list includes some essential formulas to remember:

1. Pythagorean theorem: a² + b² = c² (for right triangles)

2. Quadratic formula: x = (-b ± √(b² - 4ac)) / 2a

3. Slope-intercept form: y = mx + b (m is the slope, b is the y-intercept)

4. Area of a rectangle: A = length × width

5. Area of a triangle: A = (base × height) / 2

6. Area of a circle: A = πr²

7. Circumference of a circle: C = 2πr

8. Volume of a rectangular prism: V = length × width × height

9. Volume of a cylinder: V = πr²h

In addition to these formulas, don't forget your trigonometry basics like SOHCAHTOA for right triangles:

- sin(angle) = opposite / hypotenuse

- cos(angle) = adjacent / hypotenuse

- tan(angle) = opposite / adjacent

As for resources, the ACT website (act.org) offers free official practice tests, though you should also consider using CollegeVine's test preparation resources to help you prepare effectively. Reviewing these materials can help you get familiar with other essential formulas and problem-solving strategies on the ACT.

Practice makes perfect, so through solving problems, you will naturally remember the key formulas. Try to work through different practice problems to ensure you're comfortable with the content. Good luck!

5 months ago

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