Calculated Industries Construction Master Pro 用户指南

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页码 110
U
SER
S
G
UIDE
— 79
TRIGONOMETRIC FUNCTIONS
Trigonometric functions are available on the 
Construction Master
Pro Trig
and 
Construction Master Pro Desktop
calculators.
The drawing and formulas below list basic trigonometric formulas, for
your reference:
Given side A and angle a, find:
Side C
A
÷
ç =
(e.g., 
3 f ÷ 5 3 • 1 3 ç =
)
Side B
A
x
t =
Angle b
90°
=
Given side A and angle b, find:
Side B
A
÷
t =
Side C
A
÷
S =
Angle a
90°
=
Given side B and angle a, find:
Side A
÷
t =
Side C
÷
S =
Given side C and angle a, find:
Side A
x
ç =
Side B
x
S =
Given side A and side C, find:
Angle a
A
÷
= Ç ç
Angle b
A
÷
= Ç S
Given side B and angle b, find:
Side C
÷
ç =
Side A
x
t =