Short answerEasy1 mark
5(c)
Use a graph sheet for this question. Take 1 cm = 1 unit along both x and y axis.
Join the points A, B, C, D, D', C', B', A in order and give a name to the closed figure ABCDD'CB'A.
Topic: Reflection and plotting
Previous-year question practice database
Answer
Solution diagram

Exam answer
After plotting A, B, C and D and reflecting B, C and D to B′, C′ and D′, join:
A → B → C → D → D′ → C′ → B′ → A
The closed figure has seven sides.
Answer:
Heptagon (septagon).
Explanation
The joined outline has the seven vertices A, B, C, D, D′, C′ and B′. A polygon with seven sides is a heptagon, also called a septagon.
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