Right Triangle Calculator
Please provide 2 values below to calculate the other values of a right triangle. If radians are selected as the angle unit, it can take values such as pi/3, pi/4, etc.
Result
Given a=3.5 and c=17,
b = 16.6358
∠α = 11.881° = 11°52'52" = 0.20737 rad
∠β = 78.119° = 78°7'8" = 1.36343 rad
h = 3.42502
area = 29.11266
perimeter = 37.1358
inradius = 1.5679
circumradius = 8.5
+ Show Calculation Steps
Calculation Steps
The following is one way to perform the calculation. It may not be the best way.
b =  √c^{2}  a^{2} 
=  √17^{2}  3.5^{2} 
=  √276.75 
=  16.6358 
∠α =  
=  
=  arcsin(0.20588235294118) 
=  0.20737 rad = 11.881° = 11°52'52" 
∠β =  
=  arcsin(  16.635804759614  )   17 

=  arcsin(0.97857675056554) 
=  1.36343 rad = 78.119° = 78°7'8" 
perimeter =  a + b + c 
=  3.5 + 16.635804759614 + 17 
=  37.1358 
inradius =  
=  58.225316658649   37.135804759614 

=  1.5679 