Eqautions Flashcards
(30 cards)
What is the formula for the area of a rectangle?
Area = b x h
What is the formula for the area of a sector?
Sector Area = (θ/360) x π r²
What is the formula for the volume of a cuboid?
V = l x b x h
What is the formula for the surface area of a cylinder?
Curved surface area = 2πrh
What is the formula for the circumference of a circle?
Circumference = π d
What is the relationship defined by the discriminant in quadratic equations?
b² - 4ac
What does b² - 4ac > 0 indicate?
Two real and distinct roots
What does b² - 4ac = 0 indicate?
Real and equal roots
What does b² - 4ac < 0 indicate?
No real roots
What is the sum of angles in any triangle?
Always 180°
What is the sum of angles in any quadrilateral?
Always 360°
Complementary angles add up to _______.
90°
Supplementary angles add up to _______.
180°
Vertically opposite angles are _______.
Always equal
Corresponding angles (F shape) are _______.
Always equal
Alternate angles (Z shape) are _______.
Always equal
What is the formula for the volume of a prism?
V = A x h
What is the formula for the volume of a cylinder?
V = π r² h
What is the area scale factor for similar shapes?
(length scale factor)²
What is the volume scale factor for similar shapes?
(length scale factor)³
What is the highest common factor?
The largest number that divides two or more numbers without leaving a remainder
What is the Pythagorean theorem?
a² + b² = c²
What is the turning point in a quadratic function?
(a, b)
What is the gradient in a linear equation?
The slope of the line
