Juliana's answer to Blur sotong 's Primary 5 Maths Angles & Geometry Singapore question.

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Juliana
Juliana's answer
15 answers (A Helpful Person)
1st
XYZ is a straight line (180°)
180-106=74 (WYZ)
180-142= 38 (XYV)
180-(74+38)
=180-112
=68 ✓✓