Trigonometry: Calculate the Area of a Triangle. Use of Sine function to find area of triangle. This program uses radians for the input angles.
Program
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Trigonometry: Calculate the Area of a Triangle
Use of Sine function to find area of triangle
This program uses radians for the input angles.
By Geoff Fellows
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prog_vars =
d/length1 0.0
d/length2 0.0
d/degrees_angle 0.0
d/radians 0.0
d/area 0.0
d/raw_sine 0.0
d/pi 0.0
prog_vars.
prog_start =
"Calculate the area of a triangle using the Sine function"
"You need the length of two sides and the angle joining them"
div 22 7 -> /pi
-- the input sine function expects radians not degrees
-- which means we will convert the angle to radians
prog_start.
prog_loop =
"Enter length one and two and the angle"
getline -> /length1
getline -> /length2
getline -> /degrees_angle
"/length1 /length2 /degrees_angle"
-- convert degress to radians
div /degrees_angle 180 -> /radians
mul /radians /pi -> /radians
"/degrees_angle degrees = /radians radians"
sin /radians -> /raw_sine
mul 0.5 /length1 /length2 /raw_sine -> /area
"================================="
"Print the area of the triangle is /area"
exitprog
prog_loop.
prog_stop =
print "Good bye"
prog_stop.