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Sale Price $1.37.
Original Price $1.71 Comp. value
per postcard
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HIPPOPOTENUSE postcard by Sandra Boynton
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Paper Type
Signature Matte
18 pt thickness / 120 lb weight
Soft white, soft eggshell texture
-$0.16
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About This Design
HIPPOPOTENUSE postcard by Sandra Boynton
This helpful geometry diagram shows the parts of a right triangle: the adjacent, the opposite, and the…wait. What? (A classic Boynton design from 1980, which she redrew in 2013.)
Customer Reviews
4.9 out of 5 stars rating15.6K Total Reviews
15,615 Reviews
5 out of 5 stars rating
By Dawne C.January 7, 2022 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Zazzle Reviewer Program
Of course, Sandra Boynton pictures are always fun. Looking forward to sending some “happy mail” to my math teacher friend. This card is printed well, good colors & spacing.
Reviews for similar products
5 out of 5 stars rating
By Ray A.September 30, 2025 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Very pleased with my order. All my prints were manufactured to a very high standard to my exact specifications and edited additions.
5 out of 5 stars rating
By Paul I.February 4, 2021 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Creator Review
I had never seen these classic science fiction images and most of my friends have not seen them either. They are like little treasures! Amazing quality and fun to send people!
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Other Info
Product ID: 239628743349812397
Created on: 11/27/2013, 7:18 PM
Rating: G
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