Unit 3 · Measurement and Data
Which Shape? How Many Symmetry Lines?
Lesson 8 of 13
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About this lesson
Two pairs of equal sides, no parallel sides — that’s a kite. Once you recognise the shape, lines of symmetry are a one-step recall.
Chapters
0:00Introduction
0:20The Question
0:53Identifying the shape from clues 1 and 2
1:24Incorporating the right angle constraint
1:50Analyzing lines of symmetry
2:23Exam strategy — quadrilateral symmetry baselines
2:57Confirming the final option
Question
Brody is thinking of a quadrilateral.
The quadrilateral has:
- no parallel sides
- two sides of 5 cm and two sides of 8 cm
- exactly one right angle
How many lines of symmetry does Brody's quadrilateral have?
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