Spike's Calculators

Area and Perimeter

Isosceles Trapezium

Spike VM

Calculate the area and perimeter of an isosceles trapezium. In an isosceles trapezium, the base length angles are equal, making both side legs equal in length.
This calculator uses metres for measurements.

Isosceles trapezium = equal base angles with two legs (sides) of equal length.

Isosceles Trapezium

Isocles Trapezium Area and Perimeter

Base Length a m
Base Length b m
Height m
Decimal Precision

Results:

Leg c m
Area of the Trapezium
Square Metres
Square Feet ft²
Square Inches in²
Perimeter of the Trapezium
Metres m
Feet ft
Inches in

Calculation

  1. enter the length of base a in metres
  2. length of base b in metres
  3. the height of the trapezium in metres
  4. decimal precision, the number of digits after the decimal point

Results

  1. the length of leg c in metres
  2. the area of the isosceles trapezium in square metres
  3. the area in square feet
  4. the area in square inches
  5. the perimeter of the isosceles trapezium in metres
  6. the perimeter in feet
  7. the perimeter in inches

Formula
A = (a+b)/2*h
P = a+b+ 2 legs
where A is the area
a is a base length
b the other base length
h the height of the trapezium
P the perimeter of the trapezium


Conversions
one metre (m) = 3.28083989501312 feet (ft)
one metre (m) = 39.3700787401575 inches (in)
one square metre (m²) = 10.7639104167097 square feet (ft²)
one square metre (m²) = 1550.0031000062 square inches (in²)
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