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4. Select the icons on the icon palette to display other measurements.

• In the case of the line segment, for example, you can view its length, slope, and equation.

Slope Equation

5. To close the measurement box, press J twice.

u To display the area of a rectangular area

You can use the measurement box to display the area of a triangle formed by any three points

you select on the display.

Example: To use the rectangle ABCD to determine the areas of the triangles

formed by points A, D, and B, and points A, D, and C

1. Draw the rectangle.

2. Select points A, D, and B.

3. Press J.

• This causes the area of the triangle ADB to appear in

the measurement box.

4. To make the drawing screen active, press J.

• This causes the measurement box to become

unhighlighted and the pointer to reappear on the

drawing screen.

5. Press o to deselect the current points and then select points A, D, and C.

• This causes the area of the triangle ADC to appear in

the measurement box. The above procedure shows that

the areas of the two triangles are the same.

6. To close the measurement box, press J.

Casio FX-CG20 AU User Manual

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