Geometry and Spatial Sense, Grades 4 to 6 - EduGains

2D6.BLM3
186
Measuring Angles and Lengths in GSP
A
To measure an angle: First click
on the select tool and click on
point A then B then C.
B
Note that you must click on the points in the proper order – the point that is
the vertex must be selected second, or you will not get the Angle option from
the pull-down Measure menu.
A
Alternatively, you can right-click on the segment, and choose Length from the
menu that appears.
Geometry and Spatial Sense, Grades 4 to 6
C
To measure a length:
First click on the select tool and click
on the line segment (e.g., segment AB).
m AB = 7.20 cm
A
Measure
Measure
m ABC = 95.10º
B
A
B
Select Measure from
the pull-down menu,
and choose Angle.
Select Measure from the pulldown
menu, and choose Length.
C
B