Advanced Mathematics Primary 3 Geometry

In rectangle ABCD, AB = 8 cm, BC = 5 cm, CD = 8 cm, and DA = 5 cm. Which pair of sides is BOTH parallel to each other AND each measures 8 cm?

A AB and CD
B AB and BC
C BC and DA
D AB and DA
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Worked Solution

Step 1: Identify parallel pairs in rectangle ABCD. AB (top) ∥ CD (bottom) — opposite sides. BC (right) ∥ DA (left) — opposite sides. Step 2: Check which parallel pair each measures 8 cm. AB = 8 cm and CD = 8 cm ✓ BC = 5 cm and DA = 5 cm ✗ (these are 5 cm, not 8 cm) Step 3: The pair that is both parallel AND measures 8 cm is AB and CD. Answer: AB and CD

Correct answer: AB and CD

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