Formulas commonly needed on the ACT math section as cloze cards with each variable defined.
34 cards · cloze cards · AI-written, checked twice. Edit anything.
- The area of a triangle with base b and height h is ____
- A = (1/2)bh
- The area of a circle with radius r is ____
- A = πr²
- The circumference of a circle with radius r is ____
- C = 2πr
- The volume of a rectangular prism with length l, width w, and height h is ____
- V = lwh
- The volume of a cylinder with radius r and height h is ____
- V = πr²h
- The Pythagorean theorem states that for a right triangle with legs a and b and hypotenuse c, ____
- a² + b² = c²
- The slope of a line passing through points (x1, y1) and (x2, y2) is ____
- m = (y2 - y1)/(x2 - x1)
- The distance between two points (x1, y1) and (x2, y2) is ____
- d = sqrt((x2 - x1)² + (y2 - y1)²)
- The midpoint of a line segment with endpoints (x1, y1) and (x2, y2) is ____
- ((x1 + x2)/2, (y1 + y2)/2)
- The quadratic formula states that the solutions to ax² + bx + c = 0 are ____
- x = (-b ± sqrt(b² - 4ac))/(2a)
- The area of a trapezoid with parallel sides b1 and b2 and height h is ____
- A = (1/2)(b1 + b2)h
- For a right triangle, the sine of an angle is ____
- sin(θ) = opposite/hypotenuse
- For a right triangle, the cosine of an angle is ____
- cos(θ) = adjacent/hypotenuse
- For a right triangle, the tangent of an angle is ____
- tan(θ) = opposite/adjacent
- The sum of angles in a triangle is ____
- 180 degrees