Length, Area and Volume

What is a trapezium?

Quadrilateral that has one pair of parallel sides

What is a sector?

Portion of circle bounded by two radii and the included arc

Volume of a prism

Area of base x length

Volume of cuboid

l x b x h

Surface area of a triangular prism

2lx + lw+ wh

Surface area of cylinder

2πrh + 2πr2

Surface area of cone

πrl + πr2

Volume of hemisphere

2/3πr3

Curved surface area of hemisphere

2πr2

Surface area of hemisphere

3πr2

Function of a trapezoidal rule

Find the area under a curve

What is h in the trapezoidal rule?

Distance between intervals

What is y1 in the trapezoidal rule?

1st height

What is yn in the trapezoidal rule?

Last height

What is y2+y3+…yn-1 in the trapezoidal rule?

Sum of the rest of the heights

When is the trapezoidal rule more accurate?

The smaller h is the more accurate

When finding the volume of a pipe in a rate of flow question what is the cm/second value subbed into in the volume formula

h