Spike's Calculators
Right-Angled Triangle
Calculate the area and perimeter of a right-angled triangle. This calculator uses feet and or inches for measurements.
Right-angled triangle = a triangle where one of the inside angles equals 90°
Right Angled Triangle Area and Perimeter
Calculation
- length a in feet and or inches
- length b in feet and or inches
- decimal precision, the number of digits after the decimal point
Results
- the length of the diagonal in decimal feet
- the length of the diagonal in inches
- the length of the diagonal in feet and inches
- the area of the right-angled triangle in decimal square feet
- area in square feet and square inches
- the area in decimal square inches
- the area in square inches
- the area in square metres
- the perimeter of the right-angled triangle in decimal feet
- the perimeter in lineal feet and inches
- the perimeter in decimal inches
- the perimeter in inches
- the perimeter in metres
Formula
A = ab/2
P = a+b+√a²+b²
where A is the area of the ellipse
a the length of a side
b the length of the other side
P the perimeter of the triangle
Conversions
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)