Calculated Industries 4090 - Manual (Page 41)

40 — ITI S
HEET
M
ETAL
/HVAC P
RO
TRIGONOMETRIC FUNCTIONS
Trigonometric functions are available on the ITI Sheet Metal/HVAC
Pro calculator.
The drawing and formulas below list basic trigonometric formulas,
for your reference:
Given side A and angle a, find:
Side C A ÷ a ç =
(i.e., 3 f ч 5 3 • 1 3 з =)
Side B A x a t =
Angle b 90° – a =
Given side A and angle b, find:
Side B A ÷ b t =
Side C A ÷ b S =
Angle a 90° – b =
Given side B and angle a, find:
Side A B ÷ a t =
Side C B ÷ a S =
Given side C and angle a, find:
Side A C x a ç =
Side B C x a S =
Given side A and side C, find:
Angle a A ÷ C = З з
Angle b A ÷ C = Ç S
Given side B and angle b, find:
Side C B ÷ b ç =
Side A B x b t =