Lim Huishan's answer to CV's Primary 6 Maths Algebra Singapore question.

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Lim Huishan
Lim Huishan's answer
15 answers (Tutor Details)
1st
Due to the properties, angle XUV, XWV and YWZ is the same and equal to 83. Using properties of isosceles triangle, angle WYZ and ZWY is the same, so ( 180 - angle YWZ ) divided by 2 and you'll get the answer. Hope this helps