Spike's Calculators

Calculate the area and perimeter of an isosceles triangle. This calculator uses feet for measurements.

Isosceles Triangle = a triangle that has two equal length sides.

- base length in feet and or inches
- height in feet and or inches
- decimal precision, the number of digits after the decimal point

- length of diagonal in decimal feett
- the area of the isosceles triangle in decimal square feet
- area in square feet and inches
- the area in decimal square inches
- the area in square inches
- the area in square metres
- the perimeter of the isosceles triangle in decimal feet
- the perimeter in lineal feet and inches
- the perimeter in decimal inches
- the perimeter in inches
- the perimeter in metres

A = bh/2 P =a*2+b where A is the area of the ellipse b the length of the base h the height P the perimeter of the triangle a the length of a leg

one square foot ( ft²) = 144 square inches (in²) one square inch (in²) = 0.00694444444444443 square feet (ft²) one square foot ( ft²) = 0.09290304 square metres (m²) square inch (in²) = 0.00064516 square metres (m²)