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AssignmentMultiple Select

Properties of Transformations

Question 1 • HCISD-Mathematical Models with Applications B-CR SUMMER

Which situations can be represented by isometric transformations? Check all that apply.A photo is projected from a computer onto a large screen.A circular game piece is moved three squares forward.The flag on a mailbox is turned up.The letters of words on an emergency vehicle are written from right to left so they appear correctly in a car’s rear-view mirror.A 2-foot tall model of the Statue of Liberty is constructed.

Answer
A
A photo is projected from a computer onto a large screen.
B
A circular game piece is moved three squares forward.
C
The flag on a mailbox is turned up.
D
The letters of words on an emergency vehicle are written from right to left so they appear correctly in a car’s rear-view mirror.
E
A 2-foot tall model of the Statue of Liberty is constructed.

Explanation

Isometric transformations preserve distances and shape; translations, rotations, and reflections are isometric. Moving the game piece forward is a translation, and turning the mailbox flag is a rotation, so both qualify. The reversed lettering is reflected in a car’s mirror, which is also an isometric transformation. Projecting the photo onto a larger screen and building a model at a different size change the size, so they are not isometric.

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