PSLE Math 2023 Paper 2 Question 1

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(Equilateral Triangle Angles Question)

PSLE Math 2023 Paper 2 Question 1

Handwritten notes in blue ink on lined paper with mathematical calculations, including geometry related to equilateral triangles and angles, with certain angles calculated as 62 degrees.

Equilateral triangle → Each ∠ is 60°
∠ABC = 60°
∠DBE = 180° - 38° - 60° (sum of ∠s on a str. line = 180°)
= 82°
∠DEB = 180° -  82° - 36° (sum of ∠s in a triangle = 180°)
= 62°