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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.
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