The table below shows diagrams of a number of shapes - Junior Cycle Mathematics - Question 1 - 2017
Question 1
The table below shows diagrams of a number of shapes.
The lengths of some of the sides are marked.
Fill in the table below to show the number of axes of symmetry o... show full transcript
Worked Solution & Example Answer:The table below shows diagrams of a number of shapes - Junior Cycle Mathematics - Question 1 - 2017
Step 1
Square
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Answer
A square has 4 axes of symmetry. These include two diagonals and two lines that bisect the square vertically and horizontally.
Step 2
Isosceles Triangle
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Answer
An isosceles triangle has 1 axis of symmetry. This axis is the vertical line that divides the triangle into two equal halves.
Step 3
Rectangle
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Answer
A rectangle has 2 axes of symmetry. These axes are the vertical line that divides the rectangle down the middle and the horizontal line that divides it across the middle.
Step 4
Parallelogram (angles are not 90°)
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Answer
A general parallelogram has 0 axes of symmetry, as the angles are non-rectangular and do not allow for any reflective symmetry about an axis.
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