Question | Answer |
Rectangle - area | A = lw (length, width) |
Rectangle - perimeter | P = 2l + 2w (length, width) |
Parallelogram - area | A = bh (base, height) |
Triangle - area | A = 1/2 bh (base, height) |
Triangle - perimeter | P = a + b + c (a, b, c = sides) |
Trapezoid - area | A = 1/2(b1 + b2)h (base1, base2, height) |
Trapezoid - perimeter | P = A + b1 + b2 + c (Area, base1, base2, c = angled side) |
Circle - area | A = πr^2 (π = pi, radius, ^2 = squared) |
Circle - perimeter | P = 2πr = πd (radius, diameter) |
Rectangular solid - volume | V = lwh (length, width, height) |
Rectangular solid - surface area | SA = 2lw + 2lh + 2wh (length, width, height) |
Prism - volume | V = bh (b = area of base, height) |
Prism - surface area | SA = 2b + Ph (b = area of base, P = perimeter of base, height) |
Cylinder - volume | V = πr^2h (radius, height) |
Cylinder - surface area | SA = 2πr^2 + 2πrh (radius, height) |
Pyramid - volume | V = 1/3bh (b = area of base, height) |
Cone - volume | V = 1/3πr^2h (radius, height) |
Cone - surface area | SA = πr^2 + πrs (s = side of cone = square root of r^2 + h^2) |
Sphere - volume | V = 4/3πr^3 |
Sphere - surface area | SA = 4πr^2 |