formulas Flashcards
perimeter of a rectangle
add all the sides
area of a rectangle
l * w
perimeter of a square
4a (add all the sides)
area of a square
side length * side length
perimeter of a parallelogram
2a + 2b or add all the sides
area of a parallelogram
base * height
perimeter of a rhombus
4a or add all the sides
area of a rhombus
1/2pq
perimeter of a trapezoid
a + b + c + d or add all the sides
area of a trapezoid
1/2(base1 + base2)h
perimeter of a kite
2a + 2b or add all the sides
area of a kite
1/2pq
SA of a cube
6a squared
V of a cube
a cubed
SA of a rectangular prism
2lw + 2lh + 2wh (add up the areas of each plane/square/rectangle it’s made of)
V of a rectangular prism
lwh
SA of a cylinder
2πrh+2πr ^ 2
V of a cylinder
πr^2h
SA of a sphere
4πr^2
V of a sphere
4/3πr^3
SA of a cone
πr^2 + πrl
V of a cone
1/3πr^2h
SA of a pyramid
lw + area of each triangle
V of a pyramid
1/3lwh