Blackline Masters/TRIGONOMETRY USING THE SHARP EL-9600 81
Copyright © 1998, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
1. Set the calculator to operate in degrees with 2ndF SET UP , touch B DRG,
and double touch 1 Deg. Press 2ndF QUIT to exit the set up screen.
2. Access the SOLVER by pressing 2ndF SOLVER , and press CL to delete
any equation on the screen.
3. Type in the equation A = B•H with the keystrokes: ALPHA A ALPHA
= a/b 1 2 ALPHA B × ALPHA H
4. Press 2ndF SOLVER , touch A METHOD, and double touch 1 Equation to
choose the Equation solver. Press ENTER to see the list of variables for
your equation.
5. Find the area of a triangular garden plot with base = 4 meters and height =
8.35 meters, use ▼ to move the blinking cursor over B and type in 4.
Type in 8.35 for H and press ENTER . Press ▲ twice to move the prompt
to the A variable. Press 2ndF EXE to find the area, 16.7 square meters.
6. Save the formula by pressing 2ndF SOLVER and touching C SAVE.
Enter a name and press ENTER .
7. Enter A = B•C•sin θ by pressing CL a couple times to return to and delete
the current equation. Type in the equation with the keystrokes: ALPHA A
ALPHA = a/b 1 2 ALPHA B × ALPHA C × sin
ALPHA θ .
8. Consider the triangle where sides of lengths 4.8 and 5.73 enclose a 47° angle.
Press ENTER to access the variable list, enter 5.73 for B, 4.8 for C (or
vice-versa), and 47 for θ. Move the cursor to the A variable. Press 2ndF
EXE to solve for the area.
AREA OF A TRIANGLE
9.1
NAME _____________________________________________________ CLASS __________ DATE __________
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