Mathematics SAT-72: Special Right Triangles — 30-60-90 Use the fixed 1 : √3 : 2 side ratio of a 30-60-90 triangle to find any side from one side.
Mathematics SAT-71: Special Right Triangles — 45-45-90 Use the fixed side ratio 1 : 1 : √2 of a 45-45-90 triangle to find sides without the full theorem.
Mathematics SAT-70: Pythagorean Theorem and the Distance Formula Use a² + b² = c² for right triangles and apply it as the distance formula on the coordinate plane.
Mathematics SAT-69: Isosceles and Equilateral Triangles Use the base-angles property of isosceles triangles and the all-60° rule of equilateral triangles.
Mathematics SAT-68: Triangles — Interior and Exterior Angle Theorems Use the 180° interior-angle sum and the exterior-angle theorem to find unknown triangle angles.
Mathematics SAT-67: Parallel Lines Cut by a Transversal Find every angle when a transversal crosses parallel lines using corresponding and alternate angles.
Mathematics SAT-66: Lines and Angles — Vertical, Supplementary, and Complementary Use vertical, supplementary (180°), and complementary (90°) angle relationships to solve for unknowns.
Mathematics SAT-65: Linear vs. Exponential Data Modeling Choose the right model for real data — linear for constant change, exponential for constant percent change.
Mathematics SAT-64: Comparing Data Sets — Boxplots and Histograms Read the five-number summary from a boxplot and shape from a histogram, then compare two data sets.
Mathematics SAT-63: Margin of Error and Confidence Intervals Interpret a margin of error and a confidence interval, and know what raises or lowers the margin.
Mathematics SAT-62: Experimental Design — Random Assignment and Cause-and-Effect Tell experiments from observational studies and know when you can claim one thing causes another.
Mathematics SAT-61: Selection Bias and Generalizing Results Spot selection bias, judge when results generalize, and decide which population a conclusion applies to.
