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