# HiSET® Math: Formulas You Will Be Given During the Test

The HiSET® Math test is easier than you think. If you don’t believe us, here’s proof: You will have a formula sheet during the test that includes some of the formulas you’ll need. So you only need to learn how to *use* these formulas, but you *don’t* need to memorize them. Great, isn’t it?

And there’s more: We at Union Test Prep will spoil you by giving you the formulas *before* the test, so you can practice using them to solve our **free** sample problems for the HiSET® Math Test.

We also have three charts of formulas that are *not* given to you during the test, but that will be helpful to know. They are:

Geometry Formulas You Need to Know for the HiSET® Math Test

Algebra Formulas You Need to Know for the HiSET® Math Test

Statistics and Probability Formulas You Need to Know for the HiSET® Math Test

## Formulas You Will Be Given for the HiSET® Math Test

Category | Formula | Symbols |
---|---|---|

Perimeter | \(P = (2 \cdot l) + (2 \cdot w)\) | \(P\) = Perimeter of a rectangle \(l\) = Length \(w\) = Width |

Perimeter/ Circumference |
\(C = 2 \cdot \pi \cdot r\) | \(C\) = Circumference of a circle \(\pi\) = 3.1416 \(r\) = Radius |

Area | \(A=\pi \cdot r^2\) | \(A\) = Area of a circle \(\pi\) = 3.1416 \(r\) = Radius |

Area | \(A = \frac{1}{2} b \cdot h\) | \(A\) = Area of a triangle \(b\) = Base \(h\) = Height |

Area | \(A=b \cdot h\) | \(A\) = Area of a parallelogram \(b\) = Base \(h\) = Height |

Area | \(A = h \cdot \frac{(b_1+b_2)}{2}\) | \(A\) = Area of a trapezoid \(h\) = Height \(b_n\) = Base n |

Volume | \(V = a \cdot h\) | \(V\) = Volume of a prism or cylinder \(a\) = Area of the base \(h\) = Height |

Volume | \(V = \frac{1}{3} \cdot a \cdot h\) | \(V\) = Volume of a pyramid or cone \(a\) = Area of the base \(h\) = Height |

Volume | \(V = \frac{4}{3} \cdot \pi \cdot r^3\) | \(V\) = Volume of a sphere \(\pi\) = 3.1416 \(r\) = radius |

Length Equivalents |
\(1 \ ft = 12\ in\) \(1 \ yd = 3 \ ft\) \(1 \ mi = 5 \ 280 \ ft\) \(1 \ m = 1 \ 000 \ mm\) \(1 \ m = 100 \ cm\) \(1 \ km = 1 \ 000 \ m\) \(1 \ mi \approx 1.6 \ km\) \(1 \ in \approx 2.54 \ cm\) \(1 \ ft \approx 0.3 \ m\) |
\(ft\) = foot \(in\) = inch \(yd\) = yard \(mi\) = mile \(m\) = meter \(mm\) = millimeter \(cm\) = centimeter \(km\) = kilometer |

Capacity/Volume Equivalents |
\(1 \ c = 8 \ fl \ oz\) \(1 \ pt = 2 \ c\) \(1 \ qt = 2 \ pt\) \(1 \ gal = 4 \ qt\) \(1 \ gal = 231 \ in^3\) \(1 \ L = 1 \ 000 \ mL\) \(1 \ L \approx 0.264 \ gal\) |
\(c\) = cup \(fl \ oz\) = fluid ounce \(pt\) = pint \(qt\) = quart \(gal\) = gallon \(in^3\) = cubic inch \(L\) = liter \(mL\) = milliliter |

Weight/Mass Equivalents |
\(1 \ lb = 16 \ oz\) \(1 \ t = 2 \ 000 \ lb\) \(1 \ g = 1 \ 000 \ mg\) \(1 \ kg = 1 \ 000 \ g\) \(1 \ kg \approx 2.2 \ lb\) \(1 \ oz \approx 28.3 \ g\) |
\(lb\) = pound \(oz\) = ounce \(t\) = ton \(g\) = gram \(mg\) = milligram \(kg\) = kilogram |

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