Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Explore lessons that cover essential, foundational mathematics concepts.
Enhance your teaching with a hands-on learning experience.
We are here to help with distance learning resources for schools and districts.
TI-Nspire™ CXTI-Nspire™ CX CAS
Students insert a photo of their face and use the measurement tools to determine the ratio of the length of their face to the width of their face.
Use the insert image option to insert a picture of a face on the background of a geometry page. Use the geometry tools to measure the length and width of your face and determine the value of the ratio length to width.
Compare your ratio to the Golden Ratio and decide if your face is proportioned exactly as the golden ratio expects or if your face is longer/wider or shorter/narrower than the ratio expects.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.