Rev Flashcards
What is the formula for the area of a triangle?
Area = 1/2 × base × height
True or False: The sum of the angles in a triangle is always 180 degrees.
True
Fill in the blank: The formula for the circumference of a circle is ____.
Circumference = 2πr
What is the Pythagorean theorem?
a² + b² = c², where c is the hypotenuse.
What is the formula for the volume of a cylinder?
Volume = πr²h
What is the quadratic formula?
x = (-b ± √(b² - 4ac)) / (2a)
True or False: The slope of a line is calculated as rise over run.
True
What is the formula for the area of a rectangle?
Area = length × width
What is the formula for the surface area of a sphere?
Surface Area = 4πr²
Fill in the blank: The formula for the distance between two points (x1, y1) and (x2, y2) is ____.
Distance = √((x2 - x1)² + (y2 - y1)²)
What is the formula for the area of a parallelogram?
Area = base × height
What is the formula for the volume of a cone?
Volume = 1/3πr²h
True or False: The mean is the sum of all values divided by the number of values.
True
What is the formula for the area of a trapezium?
Area = 1/2 × (a + b) × height, where a and b are the lengths of the parallel sides.
What does ‘median’ refer to in a data set?
The middle value when the data set is ordered.
What is the formula for converting a percentage to a decimal?
Decimal = Percentage / 100
Fill in the blank: The formula for the probability of an event is ____.
Probability = Number of favorable outcomes / Total number of outcomes
What is the formula for the area of a circle?
Area = πr²
True or False: The mode is the value that appears most frequently in a data set.
True
What is the formula for the surface area of a rectangular prism?
Surface Area = 2lw + 2lh + 2wh, where l = length, w = width, h = height.
What is the formula for the volume of a sphere?
Volume = 4/3πr³
What does ‘range’ refer to in a data set?
The difference between the highest and lowest values.
Fill in the blank: The formula for the sum of interior angles of a polygon is ____.
Sum = (n - 2) × 180°, where n is the number of sides.
What is the formula for finding the slope of a line given two points?
Slope = (y2 - y1) / (x2 - x1)
