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# WAHS Math TAKS

### WAHS Math TAKS Formulas

Question | Answer |
---|---|

Perimeter of a rectangle | P = 2L + 2W or P = 2(L + W) |

Circumference of a circle | C = 2*π*R or C = π*D |

Area of a rectangle | A = L*W or A = B*H |

Area of a triangle | A = ½*B*H or A = (B*H)/2 |

Area of a trapezoid | A = ½*(B1 + B2)*H or A = ((B1 + B2)*H)/2 |

Area of a regular polygon | A = ½*a*P [P = perimeter of the Base of a 3-D figure] |

Area of a circle | A = π*R² |

Surface area of a cube (total) | S = 6s² |

Surface area of a prism (lateral) | S = P*H |

Surface area of a prism (total) | S = P*H + 2B |

Surface area of a pyramid (lateral) | S = ½P*L |

Surface area of a pyramid (total) | S = ½P*L + B |

Surface area of a cylinder (lateral) | S = 2π*R*H |

Surface area of a cylinder (total) | S = 2π*R*H + 2π*R² or S = 2π*R(H + R) |

Surface area of a cone (lateral) | S = π*R*L |

Surface area of a cone(total) | S = π*R*L + π*R² |

Surface area of a sphere | S = 4π*R² |

Volume of a prism or cylinder | V = B*H |

Volume of a pyramid or cone | V = 1/3(B*H) |

Volume of a sphere | V = 4/3(π*R³) |

Pythagorean Theorem | a² + b² = c² |

Distance Formula | D = √(xsub2 -xsub1)² + (ysub2 - ysub1)² |

Slope of a line | M = (ysub2 - ysub1)/(xsub2-xsub1) |

Slope-intercept form of an equation | y = mx + b |

point-slope form of an equation | y - ysub1 = m(x - xsub1) |

Standard form of an equation | Ax + By = C |

Simple interest formula | I = p*r*t |

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