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Question
A 45° – 45° – 90° set-square has ______ line/lines of symmetry.
Fill in the Blanks
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Solution
A 45° – 45° – 90° set-square has one line/lines of symmetry.
Explanation:
Since, a 45° – 45° – 90° set square has a shape of isosceles triangle and an isosceles triangle has one line of symmetry.

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