Right Trapezoid Measurement
7
Calculation
Short press nine times to .
press to get length of L
1
;
press to get length of L
2
;
α is the angle between the diagonal L
2
and the line L
4
.
The device calculates the area of the Trapezoid S , the length of L
3
, length of
L
4
, and angle β ;
Press to check more results.
1. Press to measure a distance;
2. Use button to do addition calculation.
3. Continuous addition is available under this mode.
Distance Addition
1. Press to measure a distance;
2. Use button to do subtraction calculation.
3. Continuous subtraction is available under this mode.
Distance Subtraction
Remark: User can short press to cancel the last addition or subtraction
movement. Short press twice to quit.
