Datasheet

Activity 8 • Pre-Calculus with the Casio fx-9750GII
Prior to using this activity:
• Students should understand the difference between right triangles and non-
right triangles.
• Students should know the difference between degrees and radians as angle
measurements.
Ways students can provide evidence of learning:
• Students will be able to calculate the area of any triangle.
• Students will be able to calculate the area of a circular sector.
Common mistakes to be on the lookout for:
• Students may forget to switch between degree and radian mode on the
calculator.
• When using Heron’s formula, students may incorrectly calculate s (or not
calculate it at all).
Definitions
• arc
• sector
• circular sector
• degree
• radian