Geometry Flashcards
(29 cards)
Volume of a Cube?
V = a³ where a is the length of a side
Volume of a Rectangular Solid?
V = h x w x l
Volume of a Cylinder?
V = π x r² x h
Perimeter of a Circle?
P = 2πr
Perimeter of a Parallelogram?
P = 2b + 2a, where a and b are the lengths of the non-parallel sides
Area of Sector of a Circle?
(x/360)πr²
Circumference of a Circle?
C = 2πr
Central Angle of a Circle?
2(Inscribed Angle)
Area of a Circle?
A = πr²
Area of a Trapezoid?
A = .5(a+c)h, where a and c are the lengths of the parallel sides
Area of a Parallelogram?
A = bh
Super Pythagorean theorem?
x² + y² + z² = d²
3:… Pythagorean triple?
3:4:5
5:… Pythagorean triple?
5:12:13
8:… Pythagorean triple?
8:15:17
7:… Pythagorean triple?
7:24:25
9:… Pythagorean triple?
9:40:41
Isosceles triangle formula?
x : x : x√2
Equilateral triangle formula?
x : x√3 : 2x
Diagonal of a square?
d = s√2, where s is a side of the square
Diagonal of a cube?
d = s√3, where s is an edge of the cube
Surface area of a cylinder?
SA = 2 circles + rectangle = 2(πr²) + 2πrh
Volume of a cylinder?
V = πr²h
Exterior angle formula?
x = a + c, an exterior angle of a triangle is equal in measure to the sum of the two non-adjacent interior angles
